JP6720930B2 - Throttle valve device - Google Patents

Throttle valve device Download PDF

Info

Publication number
JP6720930B2
JP6720930B2 JP2017133974A JP2017133974A JP6720930B2 JP 6720930 B2 JP6720930 B2 JP 6720930B2 JP 2017133974 A JP2017133974 A JP 2017133974A JP 2017133974 A JP2017133974 A JP 2017133974A JP 6720930 B2 JP6720930 B2 JP 6720930B2
Authority
JP
Japan
Prior art keywords
hook
pressing
hook portion
coil
throttle valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2017133974A
Other languages
Japanese (ja)
Other versions
JP2019015248A5 (en
JP2019015248A (en
Inventor
彰 樋口
彰 樋口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2017133974A priority Critical patent/JP6720930B2/en
Priority to DE112018003440.2T priority patent/DE112018003440T5/en
Priority to PCT/JP2018/024094 priority patent/WO2019009133A1/en
Priority to CN201880044777.4A priority patent/CN110869594B/en
Publication of JP2019015248A publication Critical patent/JP2019015248A/en
Publication of JP2019015248A5 publication Critical patent/JP2019015248A5/ja
Priority to US16/733,402 priority patent/US11248714B2/en
Application granted granted Critical
Publication of JP6720930B2 publication Critical patent/JP6720930B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/06—Wound springs with turns lying in cylindrical surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/12—Attachments or mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/14—Torsion springs consisting of bars or tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
    • F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0205—Arrangements; Control features; Details thereof working on the throttle valve and another valve, e.g. choke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0218—Details of governor springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0269—Throttle closing springs; Acting of throttle closing springs on the throttle shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Description

この明細書における開示は、絞り弁装置に関する。 The disclosure in this specification relates to a throttle valve device.

従来、弁ボディに形成された流体通路の開度を絞り弁体により増減する絞り弁装置は、広く知られている。例えば特許文献１に開示の絞り弁装置では、駆動力の発生により絞り弁体と一体回転する回転体を、捩じりコイルばねとしてのデフォルトスプリングが付勢している。その結果、駆動力の消失時に回転体は、絞り弁と共にデフォルト位置にて定位することが可能となっている。 BACKGROUND ART Conventionally, a throttle valve device that increases or decreases the opening of a fluid passage formed in a valve body by a throttle valve body is widely known. For example, in the throttle valve device disclosed in Patent Document 1, a default spring as a torsion coil spring biases a rotating body that rotates integrally with the throttle valve body when a driving force is generated. As a result, when the driving force disappears, the rotating body can be localized at the default position together with the throttle valve.

こうした特許文献１に開示の絞り弁装置によるデフォルトスプリングは、第１フック部及び第２フック部の間にコイル部を有し、ガイド体により径方向内側からガイドされている。デフォルトスプリングでは、駆動力の発生により回転体がデフォルト位置から回転するときには、第１フック部と第２フック部とがそれぞれ、弁ボディの固定係合部及び回転体の可動係合部のうち一方と他方とに係合する。またデフォルトスプリングでは、駆動力の消失により回転体がデフォルト位置に定位するときには、第１フック部と第２フック部とがそれぞれ、少なくとも可動係合部に係合することとなる。 The default spring by the throttle valve device disclosed in Patent Document 1 has a coil portion between the first hook portion and the second hook portion, and is guided from the inside in the radial direction by the guide body. In the default spring, when the rotating body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion are respectively one of the fixed engaging portion of the valve body and the movable engaging portion of the rotating body. And engage the other. Further, in the default spring, when the rotating body is localized at the default position due to the disappearance of the driving force, the first hook portion and the second hook portion respectively engage at least the movable engaging portion.

この種の捩じりコイルばねは、対象となる係合部から両フック部が反力を受けることに起因して、コイル部が傾いた姿勢になる。そのため、コイル部がガイド体に押し付けられて、ガイド体が摩耗する。この問題に関し特許文献１には、コイル部の１巻目部分を外周側から外周支持部が押すことで、コイル部の傾いた姿勢を矯正できる旨が記載されておりし、これによりガイド体の摩耗を低減できる旨が記載されている。 In this type of torsion coil spring, the coil portions are in an inclined posture due to the reaction force of both hook portions from the target engaging portion. Therefore, the coil portion is pressed against the guide body, and the guide body is worn. Regarding this problem, Patent Document 1 describes that the tilted posture of the coil portion can be corrected by pushing the first winding portion of the coil portion from the outer peripheral side by the outer peripheral support portion, whereby the guide body It is described that wear can be reduced.

特開２０１６−１６６５７２号公報JP, 2016-166572, A

しかし、本発明者が特許文献１に記載の装置について検討したところ、コイル中心線方向に対して垂直な方向にコイル部を押しても実際には姿勢を矯正できず、捩じりコイルばねの螺旋角度に応じた最適な角度でコイル部を押す必要があることが明らかとなった。そして、最適角度で精度良く押す構造にすることは極めて困難であり、最適角度からずれた向きに押すと、コイル部の姿勢は却って悪化することが分かった。 However, when the present inventor examined the device described in Patent Document 1, the posture could not be actually corrected even if the coil portion was pushed in the direction perpendicular to the coil center line direction, and the spiral of the torsion coil spring It became clear that it is necessary to push the coil part at an optimum angle according to the angle. Further, it has been found that it is extremely difficult to make the structure to press with an optimum angle with high precision, and if the structure is pressed in a direction deviated from the optimum angle, the posture of the coil portion deteriorates rather.

このように、両フック部に反力がかかることに起因して生じるコイル部の姿勢の崩れを矯正するにあたり、コイル部を外周側から押す上記構造では、実際には姿勢を矯正することが困難である。 As described above, in correcting the collapse of the posture of the coil portion caused by the reaction force applied to both hook portions, it is actually difficult to correct the posture with the above-mentioned structure in which the coil portion is pushed from the outer peripheral side. Is.

開示されるひとつの目的は、コイル部の姿勢矯正を容易に実現できるようにした、絞り弁装置を提供することである。 One object of the disclosure is to provide a throttle valve device capable of easily realizing posture correction of a coil portion.

ここに開示された第１、第２、第３、第４、第５および第６の絞り弁装置は、
固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により回転体がデフォルト位置（Ｌｄ）に定位するとき、第１フック部と第２フック部とはそれぞれ、固定係合部及び可動係合部のうち少なくとも１つずつに係合し、駆動力の発生により回転体がデフォルト位置から回転するとき、第１フック部と第２フック部とはそれぞれ、固定係合部及び可動係合部のうち一方と他方とに係合し、
第１フック部及び第２フック部の少なくとも一方に押し当たり、コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備える。
さらに第１の絞り弁装置では、押当部のうち第１フック部または第２フック部に押し当たる押当面（８１２，８２２，８４２）は、コイル中心線方向におけるコイル部の端面（５３５ａ，５３６ａ）よりも中央の側に位置する。
さらに第２の絞り弁装置では、押当部のうち第１フック部または第２フック部に押し当たる押当面（８１２，８２２，８４２）は、コイル部の径方向中心から遠ざかるにつれ中央に近づく向きに傾斜したテーパ形状である。
さらに第３の絞り弁装置では、第１フック部または第２フック部の回転領域に配置され、コイル部の一部を中央に向けてコイル中心線方向に押し上げる押上部（８３）を備える。
さらに第４の絞り弁装置では、可動係合部または固定係合部には、第１フック部または第２フック部が嵌まって係合する溝（５２８ａ，５２８ｂ）が形成され、押当部のうち第１フック部または第２フック部に押し当たる押当面（８１２，８２２，８４２）が、溝の内壁面に形成されている。
さらに第５の絞り弁装置では、押当部は、回転体に設けられた突起形状である。
さらに第６の絞り弁装置では、
押当部は、第１フック部に押当力を付与する第１押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ）及び第２フック部に押当力を付与する第２押当部（８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ）を有し、
第１押当部及び第２押当部は、可動係合部または固定係合部に設けられ、
回転体がデフォルト位置から一方側へ回転しているとき、第１フック部に第１押当部が押し当たるとともに第２フック部が第２押当部から離れ、
回転体がデフォルト位置から他方側へ回転しているとき、第２フック部に第２押当部が押し当たるとともに第１フック部が第１押当部から離れる。 The first, second, third, fourth, fifth and sixth throttle valve devices disclosed herein are
A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion are engaged with at least one of the fixed engagement portion and the movable engagement portion, respectively. When the rotating body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively engage one and the other of the fixed engagement portion and the movable engagement portion,
A pressing part (81, 81A, 81B, 81C, 81D, 81E, which presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B).
Further, in the first throttle valve device, the pressing surface (812, 822, 842) of the pressing portion that is pressed against the first hook portion or the second hook portion is the end surface (535a, 536a) of the coil portion in the coil center line direction. ) Is located closer to the center.
Further, in the second throttle valve device, the pressing surface (812, 822, 842) of the pressing portion that presses against the first hook portion or the second hook portion approaches the center as it moves away from the radial center of the coil portion. It has a taper shape inclined to.
Furthermore, the third throttle valve device includes a push-up portion (83) which is arranged in the rotation region of the first hook portion or the second hook portion and pushes up a part of the coil portion toward the center in the coil center line direction.
Further, in the fourth throttle valve device, the movable engagement portion or the fixed engagement portion is formed with grooves (528a, 528b) with which the first hook portion or the second hook portion is fitted and engaged, and the pressing portion. The pressing surface (812, 822, 842) that presses against the first hook portion or the second hook portion is formed on the inner wall surface of the groove.
Further, in the fifth throttle valve device, the pressing portion has a projection shape provided on the rotating body.
Furthermore, in the sixth throttle valve device,
The pressing part includes a first pressing part (81, 81A, 81B, 81C, 81D, 81E) that applies a pressing force to the first hook part and a second pressing part that applies a pressing force to the second hook part. Having parts (82, 82A, 82B, 82C, 82D, 82E),
The first pressing portion and the second pressing portion are provided on the movable engaging portion or the fixed engaging portion,
When the rotating body is rotating from the default position to the one side, the first pressing portion is pressed against the first hook portion and the second hook portion is separated from the second pressing portion,
When the rotating body is rotating from the default position to the other side, the second pressing portion presses against the second hook portion and the first hook portion separates from the first pressing portion.

本発明者は、「第１フック部及び第２フック部の少なくとも一方をコイル中心線方向の中央に向けて押せば、捩じりコイルばねの螺旋角度に拘らずにコイル部の姿勢を矯正できる」といった知見を得た。この知見を鑑み、上記第１、第２、第３、第４、第５および第６の絞り弁装置は、第１フック部及び第２フック部の少なくとも一方に押し当たり、コイル中心線方向の中央に向けて押当力を付与する押当部を備えるので、コイル部の姿勢を矯正できる。しかも、コイル部を外周側から押す従来構造では最適角度で精度良く押すことが要求されるのに対し、上記第１、第２、第３、第４、第５および第６の絞り弁装置では、押当力を付与する向きを精度良くすることが不要になるので、コイル部の姿勢矯正を容易に実現できるようになる。
この明細書における開示された複数の態様は、それぞれの目的を達成するために、互いに異なる技術的手段を採用する。請求の範囲及びこの項に記載した括弧内の符号は、後述する実施形態の部分との対応関係を例示的に示すものであって、技術的範囲を限定することを意図するものではない。この明細書に開示される目的、特徴、及び効果は、後続の詳細な説明、及び添付の図面を参照することによってより明確になる。 The inventor of the present invention can correct the posture of the coil portion by pressing at least one of the first hook portion and the second hook portion toward the center of the coil center line direction regardless of the spiral angle of the torsion coil spring. I got the knowledge. In view of this finding, the first, second, third, fourth, fifth, and sixth throttle valve devices are pressed against at least one of the first hook portion and the second hook portion to move in the coil center line direction. Since the pressing unit that applies the pressing force toward the center is provided, the posture of the coil unit can be corrected. Moreover, in the conventional structure in which the coil portion is pushed from the outer peripheral side, it is required to push the coil portion at an optimum angle with high precision, whereas in the first, second, third, fourth, fifth and sixth throttle valve devices described above . Since it is not necessary to accurately set the direction in which the pressing force is applied, it becomes possible to easily realize the posture correction of the coil portion.
The disclosed aspects in this specification employ different technical means to achieve their respective ends. The claims and the reference numerals in parentheses in this section exemplify the corresponding relationship with the portions of the embodiments described later, and are not intended to limit the technical scope. Objects, features, and advantages disclosed in this specification will become more apparent with reference to the following detailed description and the accompanying drawings.

第１実施形態による絞り弁装置を示す断面図である。3 is a cross-sectional view showing the throttle valve device according to the first embodiment. FIG. 第１実施形態による絞り弁装置の一作動状態を示す図であって、図１のII−II線断面図である。It is a figure which shows one operating state of the throttle valve device by 1st Embodiment, Comprising: It is the II-II sectional view taken on the line of FIG. 図２とは異なる作動状態を示す図であって、図２に対応する断面図である。FIG. 3 is a view showing an operating state different from that of FIG. 2 and is a cross-sectional view corresponding to FIG. 2. 図２，３とは異なる作動状態を示す図であって、図２に対応する断面図である。FIG. 4 is a view showing an operating state different from FIGS. 2 and 3 and is a cross-sectional view corresponding to FIG. 2. 第１実施形態による駆動ユニットを模式的に示す正面図である。It is a front view which shows the drive unit by 1st Embodiment typically. 図５のVI矢視図である。FIG. 6 is a view on arrow VI of FIG. 5. 図５のVII矢視において可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of a movable engaging part in the VII arrow line of FIG. 図５のVI矢視において可動係合部の溝形状を示す図である。FIG. 6 is a view showing a groove shape of a movable engaging portion as viewed from the arrow VI of FIG. 5. 図５のIX−IX線断面図である。It is the IX-IX sectional view taken on the line of FIG. 図５のＸ−Ｘ線断面図である。It is the XX sectional view taken on the line of FIG. 第１実施形態による捩じりコイルばね及びガイド体の斜視図である。FIG. 3 is a perspective view of a torsion coil spring and a guide body according to the first embodiment. 第１実施形態に対する第１変形例による、可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of the movable engaging part by the 1st modification with respect to 1st Embodiment. 第１実施形態に対する第２変形例による、可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of the movable engaging part by the 2nd modification with respect to 1st Embodiment. 第１実施形態に対する第３変形例による、可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of the movable engaging part by the 3rd modification with respect to 1st Embodiment. 第１実施形態に対する第４変形例による、可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of the movable engaging part by the 4th modified example with respect to 1st Embodiment. 第１実施形態に対する第５変形例による、可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of the movable engaging part by the 5th modification with respect to 1st Embodiment. 第１実施形態に対する第６変形例による、可動係合部の溝形状を示す図である。It is a figure which shows the groove shape of the movable engaging part by the 6th modified example with respect to 1st Embodiment. 図１７のXVIII−XVIII線断面図である。It is the XVIII-XVIII sectional view taken on the line of FIG. 第２実施形態による駆動ユニットを模式的に示す正面図である。It is a front view which shows the drive unit by 2nd Embodiment typically. 図１９のXX矢視図である。It is a XX arrow line view of FIG. 第２実施形態に対する第１変形例による、駆動ユニットを模式的に示す正面図である。It is a front view which shows the drive unit by the 1st modification with respect to 2nd Embodiment typically. 第２実施形態に対する第２変形例による、駆動ユニットを模式的に示す側面図である。It is a side view which shows the drive unit by the 2nd modification with respect to 2nd Embodiment typically.

以下、本発明の複数の実施形態を図面に基づいて説明する。尚、各実施形態において対応する構成要素には同一の符号を付すことにより、重複する説明を省略する場合がある。各実施形態において構成の一部分のみを説明している場合、当該構成の他の部分については、先行して説明した他の実施形態の構成を適用することができる。また、各実施形態の説明において明示している構成の組み合わせばかりではなく、特に組み合わせに支障が生じなければ、明示していなくても複数の実施形態の構成同士を部分的に組み合わせることができる。 Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. In addition, in each embodiment, the corresponding components may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each embodiment, the configuration of the other embodiments described above can be applied to the other part of the configuration. Further, not only the combination of the configurations explicitly described in the description of each embodiment, but the configuration of a plurality of embodiments can be partially combined even if they are not explicitly described, unless the combination causes any trouble.

（第１実施形態）
図１に示すように第１実施形態による絞り弁装置１は、車両の内燃機関に搭載される電気スロットル装置に、適用される。絞り弁装置１は、内燃機関において吸気通路の一部分を構成する流体通路２を、開閉する。流体通路２には、流体としての内燃機関に吸入される吸入空気が、流通する。絞り弁装置１は、流体通路２を流通する吸入空気の流量を調整する。絞り弁装置１は、絞り弁体１０、弁軸２０、弁ボディ３０、駆動ユニット５０及びセンサユニット７０を備えている。 (First embodiment)
As shown in FIG. 1, the throttle valve device 1 according to the first embodiment is applied to an electric throttle device mounted on an internal combustion engine of a vehicle. The throttle valve device 1 opens and closes a fluid passage 2 that constitutes a part of an intake passage in an internal combustion engine. Intake air, which is drawn into the internal combustion engine as a fluid, flows through the fluid passage 2. The throttle valve device 1 adjusts the flow rate of intake air flowing through the fluid passage 2. The throttle valve device 1 includes a throttle valve body 10, a valve shaft 20, a valve body 30, a drive unit 50, and a sensor unit 70.

絞り弁体１０は、バタフライ式の回動弁である。絞り弁体１０は、金属により円板状に形成されている。絞り弁体１０には、流体通路２の通路軸線Ａａに対して実質垂直に、回転中心線Ｃｒが設定されている。絞り弁体１０は、回転中心線Ｃｒまわりの両側へ回転可能に、流体通路２内に収容配置されている。絞り弁体１０は、回転中心線Ｃｒまわりの回転により流体通路２の開度を増減することで、流体通路２における吸入空気の流量を調整する。 The throttle valve body 10 is a butterfly type rotary valve. The throttle valve body 10 is formed of metal into a disc shape. A rotation center line Cr is set in the throttle valve body 10 substantially perpendicular to the passage axis Aa of the fluid passage 2. The throttle valve body 10 is housed in the fluid passage 2 so as to be rotatable on both sides around the rotation center line Cr. The throttle valve body 10 adjusts the flow rate of intake air in the fluid passage 2 by increasing or decreasing the opening degree of the fluid passage 2 by rotating around the rotation center line Cr.

弁軸２０は、絞り弁体１０を回転駆動するためのシャフトである。弁軸２０は、金属により細長の丸棒状に形成されている。弁軸２０は、絞り弁体１０の回転中心線Ｃｒ上を延伸する姿勢に配置されることで、流体通路２を横切っている。弁軸２０は、絞り弁体１０に対して一体回転可能に締結されている。 The valve shaft 20 is a shaft for rotationally driving the throttle valve body 10. The valve shaft 20 is formed of metal into an elongated round bar shape. The valve shaft 20 crosses the fluid passage 2 by being arranged in a posture that extends on the rotation center line Cr of the throttle valve body 10. The valve shaft 20 is fastened to the throttle valve body 10 so as to be integrally rotatable.

弁ボディ３０は、内燃機関において吸気通路を形成する吸気管に対して固定される固定節である。弁ボディ３０は、ボディ本体３１とボディカバー３２とボディフック３３とを組み合わせて構成されている。ボディ本体３１は、金属によりブロック状に形成されている。ボディ本体３１は、ボア部３１０及び収容部３１１，３１２を有している。ボア部３１０には、円板状の絞り弁体１０によって開閉可能な円筒孔状に、流体通路２が貫通している。収容部３１１，３１２は、回転中心線Ｃｒ上にてボア部３１０を挟む両側に、それぞれ中空状に設けられている。 The valve body 30 is a fixed node fixed to an intake pipe forming an intake passage in the internal combustion engine. The valve body 30 is configured by combining a body main body 31, a body cover 32, and a body hook 33. The body body 31 is formed of metal in a block shape. The body main body 31 has a bore portion 310 and accommodating portions 311 and 312. The fluid passage 2 penetrates through the bore portion 310 in a cylindrical hole shape that can be opened and closed by the disc-shaped throttle valve body 10. The accommodating portions 311 and 312 are provided in a hollow shape on both sides of the bore portion 310 on the rotation center line Cr.

第１収容部３１１内には、ラジアル滑り軸受３４が収容固定されている。ラジアル滑り軸受３４は、弁軸２０において一端部の外周面をラジアル支持する。第２収容部３１２内には、ラジアル転がり軸受３６が収容固定されている。ラジアル転がり軸受３６は、弁軸２０において両端部間となる中間部の外周面を、ラジアル支持する。 The radial slide bearing 34 is housed and fixed in the first housing portion 311. The radial plain bearing 34 radially supports the outer peripheral surface of one end of the valve shaft 20. The radial rolling bearing 36 is housed and fixed in the second housing portion 312. The radial rolling bearing 36 radially supports the outer peripheral surface of the intermediate portion of the valve shaft 20, which is between the both ends.

ボディカバー３２は、樹脂により扁平皿状に形成されている。ボディカバー３２は、ボディ本体３１に締結されることで、第２収容部３１２を覆っている。ボディカバー３２が第２収容部３１２と共同形成している主収容空間３７内には、駆動ユニット５０及びセンサユニット７０が収容配置されている。 The body cover 32 is formed of resin into a flat dish shape. The body cover 32 is fastened to the body main body 31 to cover the second accommodating portion 312. The drive unit 50 and the sensor unit 70 are housed in the main housing space 37 in which the body cover 32 and the second housing portion 312 are formed together.

図１，２に示すようにボディフック３３は、金属により屈曲状に形成されている。ボディフック３３は、第２収容部３１２に設けられることで、主収容空間３７内に突入している。ボディフック３３は、主収容空間３７内への突入部分に、固定係合部３３０を有している。固定係合部３３０は、主収容空間３７内にて回転中心線Ｃｒまわりの一部分に広がる略円弧片状に、形成されている。 As shown in FIGS. 1 and 2, the body hook 33 is formed of metal in a bent shape. The body hook 33 is provided in the second accommodating portion 312, and thus protrudes into the main accommodating space 37. The body hook 33 has a fixed engagement portion 330 at a portion that projects into the main accommodation space 37. The fixed engagement portion 330 is formed in a substantially arcuate piece shape that extends in a part around the rotation center line Cr in the main accommodation space 37.

駆動ユニット５０は、弁軸２０を介して絞り弁体１０を回転駆動するための電動アクチュエータである。駆動ユニット５０は、駆動モータ５１と減速機構５２と捩じりコイルばね５３とを組み合わせて構成されている。 The drive unit 50 is an electric actuator for rotationally driving the throttle valve body 10 via the valve shaft 20. The drive unit 50 is configured by combining a drive motor 51, a speed reduction mechanism 52, and a torsion coil spring 53.

図１に示す駆動モータ５１は、外部制御回路からの通電によりモータ軸線Ａｍまわりの両側へと回転する、電動機である。駆動モータ５１は、回転により駆動力を発生する金属製モータ軸５１０を、有している。 The drive motor 51 shown in FIG. 1 is an electric motor that rotates to both sides around the motor axis Am by being energized by an external control circuit. The drive motor 51 has a metal motor shaft 510 that generates a drive force by rotation.

図１，２に示す減速機構５２は、複数の樹脂製ギア５２０，５２１，５２２，５２３を歯車連繋させてなる。減速機構５２は、初段ギア５２０と最終段ギア５２３との間にて回転減速機能を発揮する。初段ギア５２０は、同軸上のモータ軸５１０に対してモータ軸線Ａｍまわりに一体回転可能に装着されている。最終段ギア５２３は、同軸上の弁軸２０に対して回転中心線Ｃｒまわりに一体回転可能に固定されることで、絞り弁体１０とも一体回転可能となっている。駆動モータ５１から初段ギア５２０へ入力される駆動力（以下、単に「駆動力」という）は、回転減速機能により増幅されて最終段ギア５２３から弁軸２０へと伝達される。こうした伝達駆動力を弁軸２０から受けることで絞り弁体１０は、回転中心線Ｃｒまわりの両側のうち駆動力に応じた側へと回転する。 The speed reduction mechanism 52 shown in FIGS. 1 and 2 includes a plurality of resin gears 520, 521, 522, and 523 gear-connected to each other. The reduction mechanism 52 exhibits a rotation reduction function between the first gear 520 and the last gear 523. The first-stage gear 520 is attached to the coaxial motor shaft 510 so as to be integrally rotatable around the motor axis Am. The final stage gear 523 is fixed to the coaxial valve shaft 20 so as to be integrally rotatable around the rotation center line Cr, and thus is also integrally rotatable with the throttle valve body 10. The driving force (hereinafter, simply referred to as “driving force”) input from the drive motor 51 to the first stage gear 520 is amplified by the rotation deceleration function and transmitted from the final stage gear 523 to the valve shaft 20. By receiving such a transmission driving force from the valve shaft 20, the throttle valve body 10 rotates to the side corresponding to the driving force on both sides around the rotation center line Cr.

最終段ギア５２３は、回転体５２５及びガイド体５２６を有している。全体として円筒状の回転体５２５には、噛合部５２７と可動係合部５２８とが一体に設けられている。噛合部５２７は、主収容空間３７内にて回転中心線Ｃｒまわりの一部分に広がる部分平歯車状に、形成されている。噛合部５２７は、最終段ギア５２３よりも前段側のギア５２２と噛合する。 The final stage gear 523 has a rotating body 525 and a guide body 526. The cylindrical rotating body 525 is integrally provided with a meshing portion 527 and a movable engaging portion 528. The meshing portion 527 is formed in the main accommodating space 37 in the shape of a partial spur gear that spreads around a portion around the rotation center line Cr. The meshing portion 527 meshes with the gear 522 on the front side of the final stage gear 523.

可動係合部５２８は、主収容空間３７内にて回転中心線Ｃｒまわりの一部分に広がる略円弧片状に、形成されている。可動係合部５２８は、本実施形態では固定係合部３３０よりも回転中心線Ｃｒに近接して、即ち固定係合部３３０よりも径方向の内側にずれて配置されている。 The movable engagement portion 528 is formed in a substantially arcuate piece shape that spreads in a portion around the rotation center line Cr in the main accommodation space 37. In the present embodiment, the movable engaging portion 528 is arranged closer to the rotation center line Cr than the fixed engaging portion 330, that is, displaced from the fixed engaging portion 330 in the radial direction.

ここで、図１，２に示す回転体５２５の回転位置は、絞り弁体１０により流体通路２を全閉状態から僅かに開くデフォルト位置Ｌｄに、予め設定されている。このデフォルト位置Ｌｄでは、駆動力の消失により回転体５２５が定位する。 Here, the rotational position of the rotary body 525 shown in FIGS. 1 and 2 is preset to a default position Ld in which the throttle valve body 10 slightly opens the fluid passage 2 from the fully closed state. At the default position Ld, the rotating body 525 is localized due to the disappearance of the driving force.

一方、図３に示す回転体５２５の回転位置は、絞り弁体１０により流体通路２を全開する、即ち製品仕様上での最大開度に開放する全開位置Ｌｏに、予めされている。この全開位置Ｌｏでは、第２収容部３１２により噛合部５２７がデフォルト位置Ｌｄとは反対側から係止されることで、回転方向のうち流体通路２を開放する開放側（以下、単に「開放側」という）への回転が回転体５２５に対して規制される。そこでデフォルト位置Ｌｄよりも開放側には、全開位置Ｌｏまでの間にて駆動力の発生により回転体５２５の回転駆動される回転領域が、大回転領域Ｒｌとして定義されている。 On the other hand, the rotational position of the rotating body 525 shown in FIG. 3 is set in advance to the fully open position Lo where the fluid passage 2 is fully opened by the throttle valve body 10, that is, the maximum opening according to the product specifications is opened. At the fully open position Lo, the engagement portion 527 is locked from the side opposite to the default position Ld by the second accommodating portion 312, so that the fluid passage 2 is opened in the rotational direction (hereinafter, simply referred to as “open side”). Rotation) is restricted with respect to the rotating body 525. Therefore, on the opening side of the default position Ld, the rotation region in which the rotating body 525 is driven to rotate by the generation of the driving force up to the fully open position Lo is defined as the large rotation region Rl.

また一方、図４に示す回転体５２５の回転位置は、絞り弁体１０により流体通路２を全閉する全閉位置Ｌｃに、予め設定されている。この全閉位置Ｌｃでは、第２収容部３１２により噛合部５２７が全開位置Ｌｏ及びデフォルト位置Ｌｄの双方とは反対側から係止されることで、回転方向のうち流体通路２を閉塞する閉塞側（以下、単に「閉塞側」という）への回転が回転体５２５に対して規制される。そこでデフォルト位置Ｌｄよりも閉塞側には、全閉位置Ｌｃまでの間にて駆動力の発生により回転体５２５の回転駆動される回転領域が、小回転領域Ｒｓとして大回転領域Ｒｌよりも許容される回転角度の小さな領域に、定義されている。 On the other hand, the rotational position of the rotating body 525 shown in FIG. 4 is preset to the fully closed position Lc where the throttle valve body 10 fully closes the fluid passage 2. At the fully closed position Lc, the engagement portion 527 is locked from the side opposite to both the fully open position Lo and the default position Ld by the second storage portion 312, so that the fluid passage 2 is closed in the rotation direction. Rotation (hereinafter, simply referred to as “closed side”) is restricted by the rotating body 525. Therefore, on the closing side of the default position Ld, the rotation region in which the rotating body 525 is rotationally driven by the generation of the driving force up to the fully closed position Lc is allowed as the small rotation region Rs rather than the large rotation region Rl. It is defined in the area where the rotation angle is small.

図１に示すようにガイド体５２６は、主収容空間３７内にて回転中心線Ｃｒまわりに連続する外周面を有する円柱状に、形成されている。ガイド体５２６は、回転体５２５の噛合部５２７と同軸上に一体形成されている。弁軸２０に対してガイド体５２６は、同軸上に装着されて一体可能となっている。 As shown in FIG. 1, the guide body 526 is formed in a cylindrical shape having an outer peripheral surface continuous around the rotation center line Cr in the main accommodation space 37. The guide body 526 is integrally formed coaxially with the meshing portion 527 of the rotating body 525. The guide body 526 is coaxially attached to the valve shaft 20 so that it can be integrated.

図１，２に示す捩じりコイルばね５３は、捩じりにより弾性変形して復原力（以下、「捩じり弾性力」という）を発生するトーションスプリングである。捩じりコイルばね５３は、金属素線の巻回により形成されている。捩じりコイルばね５３は、ガイド体５２６の周囲に配置されている。捩じりコイルばね５３は、両端のフック部５３１，５３２間にコイル部５３３を有している。 The torsion coil spring 53 shown in FIGS. 1 and 2 is a torsion spring that elastically deforms due to torsion to generate a restoring force (hereinafter referred to as “torsion elastic force”). The torsion coil spring 53 is formed by winding a metal wire. The torsion coil spring 53 is arranged around the guide body 526. The torsion coil spring 53 has a coil portion 533 between the hook portions 531 and 532 at both ends.

フック部５３１，５３２は、コイル部５３３からそれぞれ径方向外側に屈曲又は湾曲されたフック状（即ち鉤状）に、形成されている。フック部５３１，５３２はいずれも、可動係合部５２８及び固定係合部３３０よりも径方向の外側まで、延出している。ガイド体５２６の周囲において第１フック部５３１は、回転中心線Ｃｒに沿う軸方向の第２フック部５３２よりも噛合部５２７側に、配置されている。 The hook portions 531 and 532 are each formed in a hook shape (that is, a hook shape) that is bent or curved radially outward from the coil portion 533. Each of the hook portions 531 and 532 extends to the outside of the movable engaging portion 528 and the fixed engaging portion 330 in the radial direction. Around the guide body 526, the first hook portion 531 is arranged closer to the meshing portion 527 than the second hook portion 532 in the axial direction along the rotation center line Cr.

図１，２のデフォルト位置Ｌｄにおいて第１フック部５３１は、係合部３３０，５２８のうち少なくとも１つとなる可動係合部５２８に、開放側から係合する。それと共に、デフォルト位置Ｌｄにおいて第２フック部５３２は、係合部３３０，５２８のうち少なくとも１つとなる可動係合部５２８に、閉塞側から係合する。これらの係合状態では、各フック部５３１，５３２が同一の係合対象に対して捩じり弾性力を相反側へと与えることで、デフォルト位置Ｌｄにて駆動力の消失した回転体５２５が定位状態を維持する。定位状態の時においても、捩じりコイルばね５３には捩じりによる弾性変形が生じており、フック部５３１，５３２は係合部３３０，５２８から反力を受けている。 At the default position Ld in FIGS. 1 and 2, the first hook portion 531 engages with the movable engaging portion 528, which is at least one of the engaging portions 330 and 528, from the opening side. At the same time, at the default position Ld, the second hook portion 532 engages with the movable engaging portion 528, which is at least one of the engaging portions 330 and 528, from the closing side. In these engaged states, the hook portions 531 and 532 apply the torsional elastic forces to the same engaged object to the opposite sides, so that the rotating body 525 in which the driving force disappears at the default position Ld. Maintain the stereotactic state. Even in the localization state, the torsion coil spring 53 is elastically deformed due to the torsion, and the hook portions 531 and 532 receive the reaction force from the engagement portions 330 and 528.

一方で第１フック部５３１は、デフォルト位置Ｌｄから開放側にずれた回転領域として図３の全開位置Ｌｏを含む大回転領域Ｒｌでは、係合部３３０，５２８のうち一方となる可動係合部５２８に、開放側から係合する。それと共に、大回転領域Ｒｌにおいて第２フック部５３２は、係合部３３０，５２８のうち他方となる固定係合部３３０に、閉塞側から係合する。これらの係合状態では、第１フック部５３１が係合対象の可動係合部５２８に閉塞側への捩じり弾性力を与えることで、大回転領域Ｒｌのうち当該捩じり弾性力と駆動力とが釣り合う位置まで回転体５２５が回転する。 On the other hand, the first hook portion 531 is a movable engagement portion 528 that is one of the engagement portions 330 and 528 in the large rotation area Rl that includes the fully open position Lo of FIG. , From the open side. At the same time, in the large rotation region Rl, the second hook portion 532 engages with the fixed engagement portion 330, which is the other of the engagement portions 330 and 528, from the closing side. In these engaged states, the first hook portion 531 applies a torsion elastic force to the closed side to the movable engagement portion 528 to be engaged, so that the torsion elastic force and the driving force in the large rotation region Rl are driven. The rotating body 525 rotates to a position where the force balances.

また一方で第１フック部５３１は、デフォルト位置Ｌｄから閉塞側にずれた回転領域として図４の全閉位置Ｌｃを含む小回転領域Ｒｓでは、係合部３３０，５２８のうち一方となる固定係合部３３０に、開放側から係合する。それと共に、小回転領域Ｒｓにおいて第２フック部５３２は、係合部３３０，５２８のうち他方となる可動係合部５２８に、閉塞側から係合する。これらの係合状態では、第２フック部５３２が係合対象の可動係合部５２８に開放側への捩じり弾性力を与えることで、小回転領域Ｒｓのうち当該捩じり弾性力と駆動力とが釣り合う位置まで回転体５２５が回転する。 On the other hand, the first hook portion 531 is one of the engaging portions 330 and 528 in the small rotation region Rs including the fully closed position Lc of FIG. 4 as the rotation region displaced from the default position Ld to the closing side. The mating portion 330 is engaged from the open side. At the same time, in the small rotation region Rs, the second hook portion 532 engages with the other movable engagement portion 528 of the engagement portions 330 and 528 from the closed side. In these engaged states, the second hook portion 532 applies a twist elastic force to the open side to the movable engagement portion 528 to be engaged, so that the twist elastic force in the small rotation region Rs becomes equal to the twist elastic force. The rotating body 525 rotates to a position where the driving force is balanced.

図１，２に示すようにコイル部５３３は、金属素線間に隙間を空けるコイル状（即ち螺旋状）に、形成されている。コイル部５３３は、ガイド体５２６により径方向内側からガイドされている。コイル部５３３におけるコイル中心線Ｃｃからのコイル径は、両端間にて実質一定である。 As shown in FIGS. 1 and 2, the coil portion 533 is formed in a coil shape (that is, a spiral shape) with a gap between the metal element wires. The coil portion 533 is guided by the guide body 526 from the inside in the radial direction. The coil diameter of the coil portion 533 from the coil center line Cc is substantially constant between both ends.

図１に示すようにセンサユニット７０は、ロータ磁石７１とセンサ素子７２とを組み合わせて構成されている。ロータ磁石７１は、磁界を恒常的に形成する永久磁石である。ロータ磁石７１は、回転体５２５に一体回転可能に埋設されている。センサ素子７２は、磁界を検出して検出信号を出力する磁電変換素子、例えばホール素子等である。センサ素子７２は、ボディカバー３２に埋設されている。センサ素子７２は、主収容空間３７内のうち回転体５２５及びガイド体５２６の径方向内側に、配置されている。これにより、センサ素子７２から出力される検出信号は、絞り弁体１０により開閉される流体通路２の開度に応じた回転体５２５の回転位置を、表すことになる。そこで外部制御回路では、センサ素子７２から出力される検出信号に基づくこととで、回転体５２５の回転位置に応じた流体通路２の開度を取得することが可能となっている。 As shown in FIG. 1, the sensor unit 70 is configured by combining a rotor magnet 71 and a sensor element 72. The rotor magnet 71 is a permanent magnet that constantly forms a magnetic field. The rotor magnet 71 is embedded in the rotating body 525 so as to be integrally rotatable. The sensor element 72 is a magnetoelectric conversion element that detects a magnetic field and outputs a detection signal, such as a Hall element. The sensor element 72 is embedded in the body cover 32. The sensor element 72 is arranged inside the main housing space 37 inside the rotating body 525 and the guide body 526 in the radial direction. As a result, the detection signal output from the sensor element 72 represents the rotational position of the rotating body 525 according to the opening degree of the fluid passage 2 opened and closed by the throttle valve body 10. Therefore, in the external control circuit, based on the detection signal output from the sensor element 72, it is possible to acquire the opening degree of the fluid passage 2 according to the rotation position of the rotating body 525.

（姿勢矯正構造）
さて、第１フック部５３１及び第２フック部５３２に係合部３３０，５２８から反力がかかることに起因して、コイル部５３３の姿勢は崩れようとする。その姿勢の崩れを矯正する目的で、図５〜８に示すように可動係合部５２８は、第１フック部５３１が嵌って係合する第１溝５２８ａと、第２フック部５３２が嵌って係合する第２溝５２８ｂとを、有している。 (Posture correction structure)
Now, the posture of the coil portion 533 tends to collapse due to the reaction force applied from the engaging portions 330 and 528 to the first hook portion 531 and the second hook portion 532. For the purpose of correcting the collapse of the posture, as shown in FIGS. 5 to 8, the movable engaging portion 528 has a first groove 528a with which the first hook portion 531 is fitted and engaged, and a second hook portion 532. It has the 2nd groove 528b which engages.

第１溝５２８ａは、第１フック部５３１の側に開口する形状（図５参照）、かつ、第１フック部５３１の線材が延びる方向、つまりコイル部５３３の周方向に貫通する形状（図６参照）である。可動係合部５２８のうち第１溝５２８ａを形成する部分が第１押当部８１に相当する。第１押当部８１は、係合面８１１、押当面８１２及び対向面８１３を有する。 The first groove 528a has a shape that opens toward the first hook portion 531 (see FIG. 5) and a shape that penetrates in the direction in which the wire rod of the first hook portion 531 extends, that is, in the circumferential direction of the coil portion 533 (FIG. 6). See). A portion of the movable engaging portion 528 that forms the first groove 528a corresponds to the first pressing portion 81. The first pressing portion 81 has an engagement surface 811, a pressing surface 812, and a facing surface 813.

係合面８１１は、コイル部５３３の外周の接線に対して垂直に拡がる平坦面である。押当面８１２及び対向面８１３は、係合面８１１に対して垂直に拡がる平坦面である。押当面８１２は、コイル中心線Ｃｃ方向のうち最終段ギア５２３の側に位置し、対向面８１３は、コイル部５３３のコイル中心線Ｃｃ方向の中央Ｍ（図５，６参照）の側に位置する。また、第１フック部５３１の押当面８１２は、コイル部５３３の径方向中心から遠ざかるにつれ中央Ｍに近づく向きに傾斜したテーパ形状である（図７，８参照）。 The engagement surface 811 is a flat surface that extends perpendicular to the tangent line of the outer circumference of the coil portion 533. The pressing surface 812 and the facing surface 813 are flat surfaces that extend perpendicularly to the engagement surface 811. The pressing surface 812 is located on the final stage gear 523 side in the coil center line Cc direction, and the facing surface 813 is located on the center M side (see FIGS. 5 and 6) of the coil portion 533 in the coil center line Cc direction. To do. Further, the pressing surface 812 of the first hook portion 531 has a taper shape that is inclined toward the center M as the distance from the radial center of the coil portion 533 increases (see FIGS. 7 and 8).

なお、コイル中心線Ｃｃ方向におけるコイル部５３３の噛合部５２７側の端面を第１端面５３５ａ（図６参照）と呼び、絞り弁体１０側の端面を第２端面５３６ａと呼ぶ。コイル中心線Ｃｃ方向における第１端面５３５ａから中央Ｍまでの距離と、第２端面５３６ａから中央Ｍまでの距離とは等しい。 The end surface of the coil portion 533 on the meshing portion 527 side in the Cc direction is referred to as a first end surface 535a (see FIG. 6), and the end surface on the throttle valve body 10 side is referred to as a second end surface 536a. The distance from the first end surface 535a to the center M in the coil center line Cc direction is equal to the distance from the second end surface 536a to the center M.

第２溝５２８ｂも第１溝５２８ａと同様の形状であり、可動係合部５２８のうち第２溝５２８ｂを形成する部分が第２押当部８２に相当する。第２押当部８２は、係合面８２１、押当面８２２及び対向面８２３を有する。押当面８２２は、コイル中心線Ｃｃ方向のうち中央Ｍの側に位置し、対向面８２３は、コイル中心線Ｃｃ方向のうち絞り弁体１０側に位置する。また、第２フック部５３２の押当面８２２は、コイル部５３３の径方向中心から遠ざかるにつれ中央Ｍに近づく向きに傾斜したテーパ形状である。 The second groove 528b also has the same shape as the first groove 528a, and the portion of the movable engaging portion 528 forming the second groove 528b corresponds to the second pressing portion 82. The second pressing portion 82 has an engaging surface 821, a pressing surface 822 and a facing surface 823. The pressing surface 822 is located on the center M side in the coil center line Cc direction, and the facing surface 823 is located on the throttle valve body 10 side in the coil center line Cc direction. Further, the pressing surface 822 of the second hook portion 532 has a tapered shape that is inclined toward the center M as the distance from the radial center of the coil portion 533 increases.

図６に示すように、第１フック部５３１の押当面８１２は、コイル中心線Ｃｃ方向において第１端面５３５ａよりも中央Ｍの側に位置し、第２フック部５３２の押当面８２２は、コイル中心線Ｃｃ方向において第２端面５３６ａよりも中央Ｍの側に位置する。 As shown in FIG. 6, the pressing surface 812 of the first hook portion 531 is located closer to the center M than the first end surface 535a in the coil center line Cc direction, and the pressing surface 822 of the second hook portion 532 is the coil surface. It is located closer to the center M than the second end surface 536a in the direction of the center line Cc.

また、コイル中心線Ｃｃ方向のうち、噛合部５２７側の１巻目部分５３５が位置する領域を第１領域Ｗ１と呼び、絞り弁体１０側の１巻目部分５３６が位置する領域を第２領域Ｗ２と呼ぶ。そして、コイル中心線Ｃｃ方向における第１押当部８１の全体が第１領域Ｗ１に配置され、コイル中心線Ｃｃ方向における第２押当部８２の全体が第２領域Ｗ２に配置されている。 Further, in the coil center line Cc direction, a region where the first winding portion 535 on the meshing portion 527 side is located is called a first region W1, and a region where the first winding portion 536 on the throttle valve body 10 side is located is a second region. It is called a region W2. The entire first pressing portion 81 in the coil centerline Cc direction is arranged in the first region W1, and the entire second pressing portion 82 in the coil centerline Cc direction is arranged in the second region W2.

図７右欄に示すように、回転体５２５がデフォルト位置またはデフォルト位置より解放側に回転すると、第１フック部５３１の側面が第１溝５２８ａに嵌り、係合面８１１が第１フック部５３１から捩じり弾性力を受ける。換言すれば、第１フック部５３１が係合面８１１から、捩じり弾性力に対する反力を受ける。一方、図７左欄に示すように、回転体５２５がデフォルト位置より閉塞側に回転すると、第１フック部５３１が第１溝５２８ａから外れる。 As shown in the right column of FIG. 7, when the rotating body 525 rotates to the default position or to the release side from the default position, the side surface of the first hook portion 531 fits into the first groove 528a, and the engagement surface 811 moves to the first hook portion 531. Receives torsional elastic force from. In other words, the first hook portion 531 receives a reaction force against the torsional elastic force from the engagement surface 811. On the other hand, as shown in the left column of FIG. 7, when the rotating body 525 rotates to the closed side from the default position, the first hook portion 531 disengages from the first groove 528a.

図８右欄に示すように、回転体５２５がデフォルト位置またはデフォルト位置より閉塞側に回転すると、第２フック部５３２の側面が第２溝５２８ｂに嵌り、係合面８２１が第２フック部５３２から捩じり弾性力を受ける。換言すれば、第２フック部５３２が係合面８２１から、捩じり弾性力に対する反力を受ける。 As shown in the right column of FIG. 8, when the rotating body 525 is rotated to the default position or to the closing side from the default position, the side surface of the second hook portion 532 fits into the second groove 528b, and the engaging surface 821 becomes the second hook portion 532. Receives torsional elastic force from. In other words, the second hook portion 532 receives a reaction force against the torsional elastic force from the engagement surface 821.

要するに、回転体５２５がデフォルト位置から一方側へ回転しているときには、第１フック部５３１に第１押当部８１が押し当たるとともに第２フック部５３２が第２押当部８２から離れる。他方側へ回転しているときには、第２フック部５３２に第２押当部８２が押し当たるとともに第１フック部５３１が第１押当部８１から離れる。 In short, when the rotating body 525 is rotating to the one side from the default position, the first pressing portion 81 is pressed against the first hook portion 531 and the second hook portion 532 is separated from the second pressing portion 82. When rotating to the other side, the second pressing portion 82 presses against the second hook portion 532 and the first hook portion 531 separates from the first pressing portion 81.

次に、本実施形態に反して溝５２８ａ，５２８ｂが形成されていない場合に生じる、コイル部５３３の姿勢の崩れについて、図９，１０を用いて説明する。図９及び図１０は、本実施形態に反して溝５２８ａ，５２８ｂが形成されていない比較例の状態を示す。 Next, the collapse of the posture of the coil portion 533 that occurs when the grooves 528a and 528b are not formed contrary to the present embodiment will be described with reference to FIGS. 9 and 10 show the state of the comparative example in which the grooves 528a and 528b are not formed contrary to the present embodiment.

図９の矢印Ｙ１ａに示すように、回転体５２５がデフォルト位置で静止しているときの第１フック部５３１は、捩じりコイルばね５３の復原力で時計回り（閉塞側）に回転しようとするが、可動係合部５２８に係合することで回転できない。そのため、可動係合部５２８と第１フック部５３１との係合点Ｐ１ｆを支点とし、上記復原力による作用力が矢印Ｙ１ｂに示すように１巻目部分５３５に作用する。その結果、１巻目部分５３５のうち、第１フック部５３１に対して可動係合部５２８の反対側に位置する部分がガイド体５２６に押し付けられる。 As indicated by an arrow Y1a in FIG. 9, when the rotating body 525 is stationary at the default position, the first hook portion 531 tries to rotate clockwise (closed side) by the restoring force of the torsion coil spring 53. However, it cannot rotate by engaging with the movable engaging portion 528. Therefore, with the engaging point P1f between the movable engaging portion 528 and the first hook portion 531 as the fulcrum, the acting force due to the restoring force acts on the first winding portion 535 as shown by the arrow Y1b. As a result, a portion of the first winding portion 535 located on the opposite side of the movable engaging portion 528 with respect to the first hook portion 531 is pressed against the guide body 526.

なお、このように１巻目部分５３５に作用力がかかる状態は、回転体５２５がデフォルト位置で静止している場合及び開放側へ回転する場合には、可動係合部５２８との係合点Ｐ１ｆを支点に生じる。そして、回転体５２５が閉塞側へ回転する場合には、固定係合部３３０との係合点を支点に生じる。要するに、対象となる係合部から第１フック部５３１が反力を受けることに起因して、コイル部５３３のうち噛合部５２７側の部分において、コイル中心線Ｃｃの位置は回転中心線Ｃｒの位置に対して、対象となる係合部よりも第１フック部５３１の側へ偏心する。 It should be noted that the state in which the acting force is applied to the first winding portion 535 in this way is that when the rotating body 525 is stationary at the default position and rotates to the opening side, the engagement point P1f with the movable engaging portion 528 is set. Occurs at the fulcrum. Then, when the rotating body 525 rotates to the closed side, it occurs at the engagement point with the fixed engagement portion 330 as a fulcrum. In short, due to the reaction force of the first hook portion 531 from the target engagement portion, the position of the coil center line Cc is the position of the rotation center line Cr in the portion of the coil portion 533 on the meshing portion 527 side. The position is eccentric to the side of the first hook portion 531 with respect to the target engaging portion.

図１０の矢印Ｙ２ａに示すように、回転体５２５がデフォルト位置で静止しているときの第２フック部５３２は、捩じりコイルばね５３の復原力で反時計回り（開放側）に回転しようとするが、可動係合部５２８に係合することで回転できない。そのため、可動係合部５２８と第２フック部５３２との係合点Ｐ２ｆを支点とし、上記復原力による作用力が矢印Ｙ２ｂに示すように１巻目部分５３６に作用する。その結果、１巻目部分５３６のうち、第２フック部５３２に対して可動係合部５２８の反対側に位置する部分がガイド体５２６に押し付けられる。 As shown by an arrow Y2a in FIG. 10, the second hook portion 532 when the rotating body 525 is stationary at the default position is rotated counterclockwise (open side) by the restoring force of the torsion coil spring 53. However, it cannot rotate by engaging with the movable engaging portion 528. Therefore, with the engaging point P2f between the movable engaging portion 528 and the second hook portion 532 as a fulcrum, the acting force by the restoring force acts on the first winding portion 536 as shown by an arrow Y2b. As a result, a portion of the first winding portion 536 located on the opposite side of the movable engaging portion 528 with respect to the second hook portion 532 is pressed against the guide body 526.

なお、このように１巻目部分５３６に作用力がかかる状態は、回転体５２５がデフォルト位置で静止している場合及び閉塞側へ回転する場合には、可動係合部５２８との係合点Ｐ２ｆを支点に生じる。そして、回転体５２５が開放側へ回転する場合には、固定係合部３３０との係合点を支点に生じる。要するに、対象となる係合部から第２フック部５３２が反力を受けることに起因して、コイル部５３３のうち絞り弁体１０側の部分において、コイル中心線Ｃｃの位置は回転中心線Ｃｒの位置に対して、対象となる係合部よりも第２フック部５３２の側へ偏心する。 It should be noted that the state in which the acting force is applied to the first winding portion 536 in this manner is such that when the rotating body 525 is stationary at the default position and rotates toward the closing side, the engagement point P2f with the movable engaging portion 528 is obtained. Occurs at the fulcrum. Then, when the rotating body 525 rotates to the open side, it occurs with the engagement point with the fixed engagement portion 330 as a fulcrum. In short, due to the reaction force of the second hook portion 532 from the target engagement portion, the position of the coil center line Cc is the rotation center line Cr in the portion of the coil portion 533 on the throttle valve body 10 side. With respect to the position of, the second hook portion 532 is eccentric to the target engaging portion.

このように、コイル部５３３の噛合部５２７側部分と絞り弁体１０側部分とは、互いに異なる向きの力を受けるのでコイル部５３３の姿勢は崩れる。この姿勢の崩れについて以下に詳述すると、先ず、コイル中心線Ｃｃは直線にはならない。また、上記変形例におけるコイル中心線Ｃｃｘは、図５に示すように第１フック部５３１及び第２フック部５３２の延出方向から見るとは直線に見えるが、図５視におけるコイル中心線Ｃｃｘは回転中心線Ｃｒに対して傾く。また、上記変形例におけるコイル部５３３は次のように変形する。すなわち、コイル部５３３の周方向におけるフック部５３１，５３２側の部分は、図１１中の矢印Ｆｘに示すようにコイル中心線Ｃｃ方向に引き伸ばされる向きに変形する。一方、コイル部５３３の周方向における反フック部側の部分は、図１１中の矢印Ｆｙに示すようにコイル中心線Ｃｃ方向に圧縮される向きに変形する。 In this way, the meshing portion 527 side portion and the throttle valve body 10 side portion of the coil portion 533 receive forces in directions different from each other, and thus the posture of the coil portion 533 collapses. The collapse of this posture will be described in detail below. First, the coil center line Cc does not become a straight line. Further, the coil center line Ccx in the modified example looks straight as seen from the extending direction of the first hook portion 531 and the second hook portion 532 as shown in FIG. 5, but the coil center line Ccx in FIG. Is inclined with respect to the rotation center line Cr. Further, the coil portion 533 in the above modification is modified as follows. That is, the portion of the coil portion 533 on the side of the hook portions 531 and 532 in the circumferential direction deforms in the direction in which it is stretched in the coil center line Cc direction as shown by the arrow Fx in FIG. On the other hand, the portion of the coil portion 533 on the side opposite to the hook portion in the circumferential direction is deformed in a direction in which it is compressed in the coil center line Cc direction as shown by an arrow Fy in FIG. 11.

そして本発明者は、矢印Ｆｘに示す引張方向変形と矢印Ｆｙに示す圧縮方向変形とを緩和させればコイル部５３３の姿勢を矯正できる、との知見を得た。ここで言う姿勢の矯正とは、コイル中心線Ｃｃを直線に近づける矯正、及びコイル中心線Ｃｃの回転中心線Ｃｒに対する傾きを抑制する矯正である。 Then, the present inventor has found that the posture of the coil portion 533 can be corrected by relaxing the deformation in the tensile direction indicated by the arrow Fx and the deformation in the compression direction indicated by the arrow Fy. The correction of the posture referred to here is a correction for making the coil center line Cc closer to a straight line and a correction for suppressing the inclination of the coil center line Cc with respect to the rotation center line Cr.

そして図１１に示すように、第１フック部５３１に、コイル中心線Ｃｃの中央Ｍに向けて押当力Ｆ１を付与すれば、１巻目部分５３５とガイド体５２６との接触部分Ｐ１ｂを支点とし、押当力Ｆ１による作用力がコイル部５３３の作用点Ｐ１ｃに作用する。同様にして、第２フック部５３２に、コイル中心線Ｃｃの中央Ｍに向けて押当力Ｆ２を付与すれば、１巻目部分５３６とガイド体５２６との接触部分Ｐ２ｂを支点とし、押当力Ｆ２による作用力がコイル部５３３の作用点Ｐ２ｃに作用する。そして、これらの作用点Ｐ１ｃ，Ｐ２ｃは、先述した圧縮方向変形する領域、つまりコイル部５３３の周方向における反フック部側の部分に作用することを本発明者は見出した。このことは、コイル中心線Ｃｃの中央Ｍに向かう押当力Ｆ１，２をフック部５３１，５３２に付与すれば、コイル部５３３の姿勢を矯正できることを意味する。 Then, as shown in FIG. 11, if a pressing force F1 is applied to the first hook portion 531 toward the center M of the coil center line Cc, the contact portion P1b between the first winding portion 535 and the guide body 526 is a fulcrum. Then, the acting force of the pushing force F1 acts on the action point P1c of the coil portion 533. Similarly, if the pressing force F2 is applied to the second hook portion 532 toward the center M of the coil center line Cc, the contact portion P2b between the first winding portion 536 and the guide body 526 is used as the fulcrum and the pressing force is applied. The acting force of the force F2 acts on the action point P2c of the coil portion 533. The present inventor has found that these points of action P1c and P2c act on the region that deforms in the compression direction described above, that is, on the portion on the side opposite to the hook portion in the circumferential direction of the coil portion 533. This means that the posture of the coil portion 533 can be corrected by applying the pressing forces F1 and F2 toward the center M of the coil center line Cc to the hook portions 531 and 532.

この知見に基づき、本実施形態に係る絞り弁装置１では、押当面８１２，８２２がフック部５３１，５３２に押し当り、コイル中心線Ｃｃの中央Ｍに向けて押当力がフック部５３１，５３２に付与される構造に形成されている。そのため、フック部５３１，５３２が係合面８１１，８２１から反力を受けることにより生じる、コイル部５３３の反フック部側部分の圧縮方向変形が、接触部分Ｐ１ｂ，Ｐ２ｂを支点として作用点Ｐ１ｃ，Ｐ２ｃに作用する押当力Ｆ１，Ｆ２により緩和される。よって、コイル部５３３の姿勢を矯正できる。 Based on this finding, in the throttle valve device 1 according to the present embodiment, the pressing surfaces 812, 822 abut against the hook portions 531 and 532, and the pressing force is applied toward the center M of the coil center line Cc. It is formed in the structure given to. Therefore, the compression direction deformation of the portion of the coil portion 533 on the side opposite to the hook portion, which occurs when the hook portions 531 and 532 receive a reaction force from the engaging surfaces 811 and 821, acts on the contact points P1b and P2b as fulcrums to act as points P1c, It is relieved by the pressing forces F1 and F2 acting on P2c. Therefore, the posture of the coil portion 533 can be corrected.

また、先述した従来構造では、コイル部５３３を外周側から最適角度で精度良く押すことが要求される。これに対し本実施形態の構造では、押当面８１２，８２２がフック部５３１，５３２に付与される押当力Ｆ１，Ｆ２の向きは、回転中心線Ｃｒやコイル中心線Ｃｃに対して傾いていてもよい。仮にその押当方向が傾いている場合であっても、その力のコイル中心線Ｃｃ方向の成分が上記押当力Ｆ１，Ｆ２として作用することとなり、姿勢矯正の効果は発揮される。したがって、コイル中心線Ｃｃ方向の中央Ｍに向けて押当力Ｆ１，Ｆ２を付与する本実施形態によれば、外周側から押し当てる従来構造に比べて、押し当てる向きに要求される精度は低くなるので、姿勢矯正を容易に実現できるようになる。 Further, in the above-described conventional structure, it is required to press the coil portion 533 from the outer peripheral side with an optimum angle with high precision. On the other hand, in the structure of the present embodiment, the directions of the pressing forces F1 and F2 applied to the hook portions 531 and 532 by the pressing surfaces 812 and 822 are inclined with respect to the rotation center line Cr and the coil center line Cc. Good. Even if the pushing direction is inclined, the component of the force in the coil center line Cc direction acts as the pushing forces F1 and F2, and the effect of posture correction is exerted. Therefore, according to the present embodiment in which the pressing forces F1 and F2 are applied toward the center M in the coil center line Cc direction, the accuracy required in the pressing direction is lower than in the conventional structure in which the pressing force is applied from the outer peripheral side. Therefore, posture correction can be easily realized.

なお、コイル部５３３の姿勢が崩れると、コイル部５３３とガイド体５２６との摩擦が大きくなり、ガイド体５２６の摩耗が懸念される。また、コイル部５３３の姿勢が崩れると、捩じりコイルばね５３の金属素線間の隙間がなくなり、素線間同士が擦れて摩耗することが懸念される。そして、これらの摩擦が大きくなると駆動モータ５１に要求される駆動トルクが大きくなる。また、回転体５２５には、駆動モータ５１による力、捩じりコイルばね５３による復原力、およびガイド体５２６との摩擦力が付与されるため、デフォルト位置Ｌｄから全閉位置Ｌｃあるいはデフォルト位置Ｌｄから全開位置Ｌｏの領域で、回転体５２５の回転に要するトルクはヒステリシスを有する。そして、上記摩耗が大きいほどヒステリシスが増大することが懸念される。したがって、本実施形態によりコイル部５３３の姿勢が矯正されると、これらの懸念を低減できる効果が発揮される。 If the posture of the coil portion 533 is lost, the friction between the coil portion 533 and the guide body 526 becomes large, and the guide body 526 may be worn. Further, if the posture of the coil portion 533 is broken, the gap between the metal wires of the torsion coil spring 53 disappears, and there is a concern that the wires may rub and wear. When these frictions increase, the drive torque required for the drive motor 51 also increases. Further, since the rotating body 525 is provided with the force by the drive motor 51, the restoring force by the torsion coil spring 53, and the frictional force with the guide body 526, the default position Ld is changed to the fully closed position Lc or the default position Ld. The torque required for the rotation of the rotating body 525 has a hysteresis in the range from to the fully open position Lo. There is a concern that the hysteresis increases as the wear increases. Therefore, when the posture of the coil portion 533 is corrected by the present embodiment, the effect of reducing these concerns is exerted.

さらに本実施形態では、押当部８１，８２は、第１フック部５３１に押当力Ｆ１を付与する第１押当部８１と、第２フック部５３２に押当力Ｆ２を付与する第２押当部８２とを有する。そのため、姿勢矯正に寄与する押当力Ｆ１，Ｆ２を両方のフック部５３１，５３２から付与するので、いずれか一方から付与する場合に比べて姿勢矯正の確実性を向上できる。 Further, in the present embodiment, the pressing portions 81 and 82 include the first pressing portion 81 that applies the pressing force F1 to the first hook portion 531 and the second pressing portion F2 that applies the pressing force F2 to the second hook portion 532. And a pressing portion 82. Therefore, since the pressing forces F1 and F2 that contribute to the posture correction are applied from both hook portions 531 and 532, the certainty of the posture correction can be improved as compared with the case where they are applied from either one.

さらに本実施形態では、第１押当部８１及び第２押当部８２は、可動係合部５２８に設けられている。そして、回転体５２５がデフォルト位置から一方側へ回転しているとき、第１フック部５３１に第１押当部８１が押し当たるとともに第２フック部５３２が第２押当部８２から離れる。その逆に、回転体５２５がデフォルト位置から他方側へ回転しているとき、第２フック部５３２に第２押当部８２が押し当たるとともに第１フック部５３１が第１押当部８１から離れる。２つのフック部５３１，５３２の一方が可動係合部５２８から離れる機会があり、その場合であっても、本実施形態では第１押当部８１及び第２押当部８２の２つを備えているので、２つの押当部８１，８２の少なくとも一方が押当力を付与することになる。よって、押当力を常時付与させることができる。 Further, in this embodiment, the first pressing portion 81 and the second pressing portion 82 are provided on the movable engaging portion 528. Then, when the rotating body 525 is rotating to the one side from the default position, the first pressing portion 81 is pressed against the first hook portion 531 and the second hook portion 532 is separated from the second pressing portion 82. Conversely, when the rotating body 525 is rotating from the default position to the other side, the second pressing portion 82 is pressed against the second hook portion 532 and the first hook portion 531 is separated from the first pressing portion 81. .. One of the two hook portions 531 and 532 has a chance to separate from the movable engaging portion 528, and even in that case, the present embodiment includes the first pressing portion 81 and the second pressing portion 82. Therefore, at least one of the two pressing portions 81 and 82 applies the pressing force. Therefore, the pressing force can be constantly applied.

さらに本実施形態では、可動係合部５２８には、第１フック部５３１が嵌まって係合する第１溝５２８ａと、第２フック部５３２が嵌まって係合する第２溝５２８ｂとが形成されている。そして、押当部８１，８２のうちフック部５３１，５３２に押し当たる押当面８１２，８２２が、溝５２８ａ，５２８ｂの内壁面に形成されている。そのため、フック部５３１，５３２が溝５２８ａ，５２８ｂに嵌まることで係合と押当力付与が為されるので、可動係合部５２８の一部を押当部８１，８２として利用でき、絞り弁装置１の小型化を図ることができる。 Further, in the present embodiment, the movable engaging portion 528 has a first groove 528a with which the first hook portion 531 is fitted and engaged, and a second groove 528b with which the second hook portion 532 is fitted and engaged. Has been formed. Further, the pressing surfaces 812 and 822 of the pressing portions 81 and 82, which contact the hook portions 531 and 532, are formed on the inner wall surfaces of the grooves 528a and 528b. Therefore, since the hook portions 531 and 532 are engaged with the grooves 528a and 528b to provide the engagement and the pressing force, a part of the movable engaging portion 528 can be used as the pressing portions 81 and 82, and It is possible to reduce the size of the valve device 1.

さらに本実施形態では、第１押当部８１のうち第１フック部５３１に押し当たる押当面８１２は、コイル中心線Ｃｃ方向におけるコイル部５３３の噛合部５２７側の端面５３５ａよりも中央Ｍの側に位置する。また、第２押当部８２のうち第２フック部５３２に押し当たる押当面８２２は、コイル中心線Ｃｃ方向におけるコイル部５３３の絞り弁体１０側の端面５３５ｂよりも中央Ｍの側に位置する。これによれば、押当部８１，８２がフック部５３１，５３２に押し当たる向きを中央Ｍ側にすることを精度良く実現でき、押当力Ｆ１，Ｆ２を容易に得ることができる。 Further, in the present embodiment, the pressing surface 812 of the first pressing portion 81 that presses the first hook portion 531 is closer to the center M than the end surface 535a of the coil portion 533 on the meshing portion 527 side in the coil center line Cc direction. Located in. Further, the pressing surface 822 of the second pressing portion 82, which contacts the second hook portion 532, is located closer to the center M than the end surface 535b of the coil portion 533 on the throttle valve body 10 side in the coil center line Cc direction. .. According to this, it is possible to accurately realize the direction in which the pressing portions 81 and 82 press against the hook portions 531 and 532 to the center M side, and it is possible to easily obtain the pressing forces F1 and F2.

さらに本実施形態では、第１押当部８１の少なくとも１部は、コイル中心線Ｃｃ方向のうち１巻目部分５３５が位置する第１領域Ｗ１に配置されている。また、第２押当部８２の少なくとも１部は、コイル中心線Ｃｃ方向のうち１巻目部分５３６が位置する第２領域Ｗ２に配置されている。そのため、押当部８１，８２がフック部５３１，５３２に押し当たる向きを中央Ｍ側にすることを精度良く実現でき、押当力Ｆ１，Ｆ２を容易に得ることができる。 Further, in the present embodiment, at least a part of the first pressing portion 81 is arranged in the first region W1 where the first winding portion 535 is located in the coil center line Cc direction. Further, at least a part of the second pressing portion 82 is arranged in the second region W2 where the first winding portion 536 is located in the coil center line Cc direction. Therefore, it is possible to accurately realize the direction in which the pressing portions 81 and 82 press the hook portions 531 and 532 to the center M side, and it is possible to easily obtain the pressing forces F1 and F2.

さらに本実施形態では、押当部８１，８２に形成された押当面８１２，８２２は、コイル部５３３の径方向中心から遠ざかるにつれ中央Ｍに近づく向きに傾斜したテーパ形状である。そのため、図１１に示すように、コイル部５３３とガイド体５２６との接触部分Ｐ１ｂ，Ｐ２ｂを支点として、１巻目部分５３５，５３６を矢印Ｆｙの反対向きに回転させるにあたり、その回転方向に押当部８１，８２は押し当たることになる。よって、コイル部５３３の反フック部側部分が圧縮方向変形することの緩和の確実性を向上できる。 Further, in the present embodiment, the pressing surfaces 812 and 822 formed on the pressing portions 81 and 82 are tapered so as to approach the center M as the distance from the radial center of the coil portion 533 increases. Therefore, as shown in FIG. 11, when the first winding portions 535 and 536 are rotated in the opposite direction of the arrow Fy with the contact portions P1b and P2b of the coil portion 533 and the guide body 526 as fulcrums, they are pushed in the rotation direction. The parts 81 and 82 are pressed against each other. Therefore, the certainty of alleviating the deformation of the coil portion 533 on the side opposite to the hook portion in the compression direction can be improved.

（第１実施形態に対する第１変形例）
図７，８に示すように、上記第１実施形態では、フック部５３１，５３２が溝５２８ａ，５２８ｂに嵌った状態において、押当面８１２，８２２と対向面８１３，８２３がともにフック部５３１，５３２の外周面と接触している。つまり、溝５２８ａ，５２８ｂの幅と金属素線の直径が同一である。これに対し、図１２に示す押当部８１Ａ，８２Ａのように、溝５２８ａ，５２８ｂの幅を金属素線の直径よりも大きく設定してもよい。この場合、押当面８１２，８２２がフック部５３１，５３２と接触することで、フック部５３１，５３２に押当力Ｆ１，Ｆ２が付与される。 (First Modification of First Embodiment)
As shown in FIGS. 7 and 8, in the first embodiment described above, when the hook portions 531 and 532 are fitted in the grooves 528a and 528b, the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are both hook portions 531 and 532. Is in contact with the outer peripheral surface of. That is, the width of the grooves 528a and 528b and the diameter of the metal element wire are the same. On the other hand, like the pressing portions 81A and 82A shown in FIG. 12, the width of the grooves 528a and 528b may be set larger than the diameter of the metal element wire. In this case, the pressing surfaces 812 and 822 come into contact with the hook portions 531 and 532, whereby the pressing forces F1 and F2 are applied to the hook portions 531 and 532.

（第１実施形態に対する第２変形例）
図７，８に示す上記第１実施形態では、押当面８１２，８２２と対向面８１３，８２３がともにテーパ形状に形成されている。これに対し、図１３に示す押当部８１Ｂ，８２Ｂのように、押当面８１２，８２２をテーパ形状に形成する一方で、対向面８１３，８２３については、コイル中心線Ｃｃに対して垂直に延びる非テーパ形状であってもよい。 (Second Modification of First Embodiment)
In the first embodiment shown in FIGS. 7 and 8, the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are both tapered. On the other hand, like the pressing portions 81B and 82B shown in FIG. 13, the pressing surfaces 812 and 822 are formed in a tapered shape, while the facing surfaces 813 and 823 extend perpendicularly to the coil center line Cc. It may be non-tapered.

（第１実施形態に対する第３変形例）
図７，８に示す上記第１実施形態では、押当面８１２，８２２と対向面８１３，８２３がともにテーパ形状に形成されている。これに対し、図１４に示す押当部８１Ｃ，８２Ｃのように、押当面８１２，８２２と対向面８１３，８２３のいずれについても、コイル中心線Ｃｃに対して垂直に延びる非テーパ形状であってもよい。 (Third Modification of First Embodiment)
In the first embodiment shown in FIGS. 7 and 8, the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are both tapered. On the other hand, like the pressing portions 81C and 82C shown in FIG. 14, both the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are non-tapered shapes that extend perpendicular to the coil center line Cc. Good.

（第１実施形態に対する第４変形例）
図１４に示す上記第３変形例では、フック部５３１，５３２が溝５２８ａ，５２８ｂに嵌った状態において、押当面８１２，８２２と対向面８１３，８２３がともにフック部５３１，５３２の外周面と接触している。つまり、溝５２８ａ，５２８ｂの幅と金属素線の直径が同一である。これに対し、図１５に示す押当部８１Ｄ，８２Ｄのように、押当面８１２，８２２と対向面８１３，８２３の両方を非テーパ形状にした構成において、溝５２８ａ，５２８ｂの幅を金属素線の直径よりも大きく設定してもよい。 (Fourth Modification Example of First Embodiment)
In the third modified example shown in FIG. 14, when the hook portions 531 and 532 are fitted in the grooves 528a and 528b, the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are both in contact with the outer peripheral surfaces of the hook portions 531 and 532. doing. That is, the width of the grooves 528a and 528b and the diameter of the metal element wire are the same. On the other hand, like the pressing portions 81D and 82D shown in FIG. 15, in the structure in which both the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are non-tapered, the width of the grooves 528a and 528b is set to the metal wire. The diameter may be set larger than the diameter.

（第１実施形態に対する第５変形例）
図５に示すように、上記第１実施形態では、押当面８１２，８２２と対向面８１３，８２３が互いに直角に配置されており、溝５２８ａ，５２８ｂは断面四角形である。これに対し、図１６に示す押当部８１Ｅ，８２Ｅのように、溝５２８ａ，５２８ｂは断面円弧形状であってもよい。換言すると、溝５２８ａ，５２８ｂは、回転体５２５の回転に伴いフック部５３１，５３２が溝５２８ａ，５２８ｂから離れていくにつれ開口面積が徐々に大きくなる断面形状である。 (Fifth Modification Example of First Embodiment)
As shown in FIG. 5, in the first embodiment, the pressing surfaces 812 and 822 and the facing surfaces 813 and 823 are arranged at right angles to each other, and the grooves 528a and 528b have a rectangular cross section. On the other hand, like the pressing portions 81E and 82E shown in FIG. 16, the grooves 528a and 528b may have an arc-shaped cross section. In other words, the grooves 528a and 528b have a sectional shape in which the opening area gradually increases as the hook portions 531 and 532 move away from the grooves 528a and 528b as the rotating body 525 rotates.

これによれば、回転体５２５の回転に伴いフック部５３１，５３２が溝５２８ａ，５２８ｂに嵌ったり外れたりするにあたり、フック部５３１，５３２が溝５２８ａ，５２８ｂにスムーズに嵌まることが促進される。 According to this, when the hook portions 531 and 532 are fitted into and removed from the grooves 528a and 528b as the rotating body 525 rotates, it is promoted that the hook portions 531 and 532 fit smoothly into the grooves 528a and 528b. ..

（第１実施形態に対する第６変形例）
図１７，１８に示す本変形例では、上記第１実施形態の構成に加えて、コイル部５３３の一部を中央Ｍに向けてコイル中心線Ｃｃ方向に押し上げる押上部８３を備える。押上部８３は、フック部５３１，５３２の回転領域に配置される。図中の符号Ｗ３は、フック部５３１，５３２の回転領域以外の領域を示す。本変形例では、上記回転領域の全体に亘って押上部８３が設けられている。要するに、押当面８２２で押当力Ｆ２を付与する回転領域から外れた領域において、絞り弁体１０側の１巻目部分５３６に押上力Ｆ３を付与する。押上力Ｆ３は、コイル中心線Ｃｃ方向において中央Ｍに向けて付与される。 (Sixth Modification Example of First Embodiment)
In the present modification shown in FIGS. 17 and 18, in addition to the configuration of the first embodiment, a push-up portion 83 that pushes up part of the coil portion 533 toward the center M in the coil center line Cc direction is provided. The push-up portion 83 is arranged in the rotation area of the hook portions 531 and 532. Reference numeral W3 in the drawing indicates a region other than the rotation region of the hook portions 531 and 532. In this modification, a push-up portion 83 is provided over the entire rotation area. In short, the pushing force F3 is applied to the first winding portion 536 on the throttle valve body 10 side in a region outside the rotation region where the pushing force F2 is applied on the pushing surface 822. The push-up force F3 is applied toward the center M in the coil centerline Cc direction.

押上部８３は、図１に示すボディ本体３１に取り付けられて支持されている。押上部８３は、絞り弁体１０側の１巻目部分５３６に接触するテーパ面８３ａを有する。テーパ面８３ａは、径方向のコイル中心線Ｃｃ側に近づくにつれ、コイル中心線Ｃｃ方向の絞り弁体１０側に傾く形状である。 The push-up portion 83 is attached to and supported by the body main body 31 shown in FIG. The push-up portion 83 has a tapered surface 83a that comes into contact with the first winding portion 536 on the throttle valve body 10 side. The tapered surface 83a has a shape that inclines toward the throttle valve body 10 side in the coil centerline Cc direction as it approaches the radial coil centerline Cc side.

以上により、本変形例によれば、押当力Ｆ１，Ｆ２に加えて押上力Ｆ３もコイル部５３３に付与されるので、コイル部５３３の姿勢矯正を促進できる。 As described above, according to the present modification, the pushing force F3 is applied to the coil portion 533 in addition to the pushing forces F1 and F2, so that the posture correction of the coil portion 533 can be promoted.

（第２実施形態）
上記第１実施形態では、押当面８１２，８２２を有する溝５２８ａ，５２８ｂを可動係合部５２８に形成することで、可動係合部５２８を押当部８１，８２として機能させている。これに対し本実施形態では、図１９，２０に示すように溝５２８ａ，５２８ｂを廃止し、突起形状の押当部８４を回転体５２５に設けている。具体的には、樹脂製の回転体５２５と押当部８４を一体に樹脂成形している。押当部８４は、第１フック部５３１に押し当たる押当面８４２を有する。押当面８４２は、第１押当部８１の押当面８１２と同様にして押当力Ｆ１を第１フック部５３１に付与する。 (Second embodiment)
In the first embodiment described above, the grooves 528a and 528b having the pressing surfaces 812 and 822 are formed in the movable engaging portion 528, so that the movable engaging portion 528 functions as the pressing portions 81 and 82. On the other hand, in the present embodiment, as shown in FIGS. 19 and 20, the grooves 528a and 528b are omitted and the protrusion-shaped pressing portion 84 is provided on the rotating body 525. Specifically, the resin rotating body 525 and the pressing portion 84 are integrally resin-molded. The pressing portion 84 has a pressing surface 842 that presses against the first hook portion 531. The pushing surface 842 applies the pushing force F1 to the first hook portion 531 similarly to the pushing surface 812 of the first pushing portion 81.

そのため、フック部５３１，５３２が係合面８１１，８２１から反力を受けることにより生じる、コイル部５３３の反フック部側部分の圧縮方向変形が、接触部分Ｐ１ｂを支点として作用点Ｐ１ｃに作用する押当力Ｆ１により緩和される。よって、溝５２８ａを押当部８４に置き替えた本実施形態によっても、コイル部５３３の姿勢を矯正できる。さらに本実施形態では、押当部８４のうち第１フック部５３１に押し当たる押当面８４２は、コイル中心線Ｃｃ方向におけるコイル部５３３の噛合部５２７側の端面５３５ａよりも中央Ｍの側に位置する。これによれば、押当部８４が第１フック部５３１に押し当たる向きを中央Ｍ側にすることを精度良く実現でき、押当力Ｆ１を容易に得ることができる。さらに本実施形態では、押当部８４の少なくとも１部は、コイル中心線Ｃｃ方向のうち１巻目部分５３５が位置する第１領域Ｗ１に配置されている。そのため、押当部８４が第１フック部５３１に押し当たる向きを中央Ｍ側にすることを精度良く実現でき、押当力Ｆ１を容易に得ることができる。 Therefore, the compression direction deformation of the portion of the coil portion 533 opposite to the hook portion, which occurs when the hook portions 531 and 532 receive the reaction force from the engagement surfaces 811 and 821, acts on the action point P1c with the contact portion P1b as the fulcrum. It is relieved by the pushing force F1. Therefore, the posture of the coil portion 533 can be corrected also by the present embodiment in which the groove 528a is replaced with the pressing portion 84. Further, in the present embodiment, the pressing surface 842 of the pressing portion 84 that presses against the first hook portion 531 is located closer to the center M than the end surface 535a on the meshing portion 527 side of the coil portion 533 in the coil center line Cc direction. To do. According to this, it is possible to accurately realize that the direction in which the pressing portion 84 presses the first hook portion 531 is on the center M side, and the pressing force F1 can be easily obtained. Further, in the present embodiment, at least a part of the pressing portion 84 is arranged in the first region W1 where the first winding portion 535 is located in the coil center line Cc direction. Therefore, it is possible to accurately realize the direction in which the pressing portion 84 presses the first hook portion 531 to the center M side, and it is possible to easily obtain the pressing force F1.

（第２実施形態に対する第１変形例）
上記第２実施形態では、図１９に示すように、第１フック部５３１が可動係合部５２８と係合した状態のときに、押当部８４が第１フック部５３１に押し当たって押当力Ｆ１を付与している。しかし、第１フック部５３１が固定係合部３３０と係合した状態のときには、押当部８４は第１フック部５３１から離れて押当力Ｆ１を付与しない。つまり、第１フック部５３１の回転領域の全体には押当部８４が配置されていない。 (First Modification of Second Embodiment)
In the second embodiment, as shown in FIG. 19, when the first hook portion 531 is engaged with the movable engaging portion 528, the pushing portion 84 pushes against the first hook portion 531 and pushes it. The force F1 is applied. However, when the first hook portion 531 is engaged with the fixed engagement portion 330, the pressing portion 84 separates from the first hook portion 531 and does not apply the pressing force F1. That is, the pressing portion 84 is not arranged in the entire rotation area of the first hook portion 531.

これに対し、図２１に示すように、第１フック部５３１の回転領域の全体に押当部８４Ａを配置させてもよい。これによれば、第１フック部５３１が固定係合部３３０と係合した状態のときであっても、押当部８４は第１フック部５３１に接触して押当力Ｆ１を付与できる。よって、コイル部５３３の姿勢矯正の効果を向上できる。 On the other hand, as shown in FIG. 21, the pressing portion 84A may be arranged in the entire rotation region of the first hook portion 531. According to this, even when the first hook portion 531 is engaged with the fixed engagement portion 330, the pushing portion 84 can contact the first hook portion 531 and apply the pushing force F1. Therefore, the effect of posture correction of the coil portion 533 can be improved.

（第２実施形態に対する第２変形例）
上記第２実施形態では回転体５２５に押当部８４を設けており、押当部８４はコイル中心線Ｃｃ方向に突出した形状である。これに対し、図２２に示すように可動係合部５２８に押当部８４Ｂを設けてもよい。この場合の押当部８４Ｂは、コイル部５３３の径方向に突出した形状となる。 (Second Modification of Second Embodiment)
In the second embodiment, the rotating body 525 is provided with the pressing portion 84, and the pressing portion 84 has a shape protruding in the coil center line Cc direction. On the other hand, as shown in FIG. 22, the movable engaging portion 528 may be provided with the pressing portion 84B. In this case, the pressing portion 84B has a shape protruding in the radial direction of the coil portion 533.

（他の実施形態）
以上、本発明の複数の実施形態について説明したが、本発明は、それらの実施形態に限定して解釈されるものではなく、本発明の要旨を逸脱しない範囲内において種々の実施形態及び組み合わせに適用することができる。 (Other embodiments)
Although a plurality of embodiments of the present invention have been described above, the present invention is not construed as being limited to those embodiments, and various embodiments and combinations are possible within the scope not departing from the gist of the present invention. Can be applied.

上記各実施形態では、可動係合部５２８に溝５２８ａ、５２８ｂを形成することで可動係合部５２８の一部を押当部８１，８２として機能させている。これに対し、固定係合部３３０に溝を形成することで固定係合部３３０の一部を押当部として機能させてもよい。また、可動係合部５２８及び固定係合部３３０の両方に溝を形成して、可動係合部５２８及び固定係合部３３０の両方を押当部として機能させてもよい。 In each of the above-described embodiments, the movable engaging portion 528 is formed with the grooves 528a and 528b so that a part of the movable engaging portion 528 functions as the pressing portions 81 and 82. On the other hand, by forming a groove in the fixed engaging portion 330, a part of the fixed engaging portion 330 may function as a pressing portion. Further, a groove may be formed in both the movable engaging portion 528 and the fixed engaging portion 330 so that both the movable engaging portion 528 and the fixed engaging portion 330 function as a pressing portion.

上記各実施形態では、１つの可動係合部５２８に第１フック部５３１と第２フック部５３２の両方を係合させているが、別々の可動係合部に第１フック部５３１と第２フック部５３２の各々を係合させてもよい。 In each of the above-described embodiments, one movable engaging portion 528 is engaged with both the first hook portion 531 and the second hook portion 532, but separate movable engaging portions include the first hook portion 531 and the second hook portion 532. Each of the hook portions 532 may be engaged.

上記各実施形態では、押当部８１，８２の全体が第１領域Ｗ１および第２領域Ｗ２に配置されている。これに対し、押当部８１，８２の少なくとも一部が第１領域Ｗ１および第２領域Ｗ２に配置された状態、つまり押当部８１，８２の一部がこれらの領域Ｗ１，Ｗ２から外れて配置されていてもよい。 In each of the above-described embodiments, the entire pressing portions 81 and 82 are arranged in the first region W1 and the second region W2. On the other hand, a state in which at least a part of the pressing portions 81, 82 is arranged in the first region W1 and the second region W2, that is, a part of the pressing portions 81, 82 is separated from these regions W1, W2. It may be arranged.

図１９，２０に示す押当部８４は、可動係合部５２８から離れた位置に配置されており、第１フック部５３１の先端に押し当たるように配置されている。これに対し、可動係合部５２８に隣接した位置に配置され、第１フック部５３１の先端から離れた位置に押し当たるように押当部８４は配置されていてもよい。 The pressing portion 84 shown in FIGS. 19 and 20 is arranged at a position apart from the movable engaging portion 528, and is arranged so as to be pressed against the tip of the first hook portion 531. On the other hand, the pressing portion 84 may be arranged at a position adjacent to the movable engaging portion 528 and may be arranged so as to be pressed at a position apart from the tip of the first hook portion 531.

上記各実施形態では、ガイド体５２６を回転体５２５と一体に樹脂成形し、ガイド体５２６が回転体５２５と一体に回転するように構成されているが、ガイド体５２６を回転体５２５と別体に形成してもよい。 In each of the above embodiments, the guide body 526 is resin-molded integrally with the rotating body 525, and the guide body 526 is configured to rotate integrally with the rotating body 525. However, the guide body 526 is separated from the rotating body 525. You may form in.

上記各実施形態の変形例として、固定係合部３３０が可動係合部５２８よりも径方向内側に配置されていてもよい。上記各実施形態の変形例として、デフォルト位置Ｌｄにおいて、コイル部５３３における１巻目部分５３５，５３６のうち少なくとも一方が可動係合部５２８に係合するのに加えて又は代えて、固定係合部３３０に係合してもよい。 As a modified example of each of the above-described embodiments, the fixed engagement portion 330 may be arranged radially inside the movable engagement portion 528. As a modification of each of the above-described embodiments, at the default position Ld, in addition to or instead of at least one of the first winding portions 535 and 536 of the coil portion 533 engaging with the movable engaging portion 528, fixed engagement. The portion 330 may be engaged.

上記各実施形態の変形例として、回転領域Ｒｌ，Ｒｓのうち一方が設定されなくてもよい。ここで、小回転領域Ｒｓが設定されない場合のデフォルト位置Ｌｄではさらに、第１フック部５３１が可動係合部５２８に係合し且つ第２フック部５３２が固定係合部３３０に係合してもよい。また、大回転領域Ｒｌが設定されない場合のデフォルト位置Ｌｄではさらに、第１フック部５３１が固定係合部３３０に係合し且つ第２フック部５３２が可動係合部５２８に係合してもよい。 As a modification of each of the above embodiments, one of the rotation regions Rl and Rs may not be set. Here, at the default position Ld when the small rotation region Rs is not set, the first hook portion 531 further engages with the movable engagement portion 528 and the second hook portion 532 engages with the fixed engagement portion 330. Good. Further, at the default position Ld when the large rotation region Rl is not set, the first hook portion 531 may further engage with the fixed engagement portion 330 and the second hook portion 532 may engage with the movable engagement portion 528. ..

上記各実施形態の変形例として、例えば内燃機関の排ガスが流通する流体通路２を有した絞り弁装置等に、本発明が適用されてもよい。ここで排気再循環装置（ＥＧＲ（Exhaust Gas Recirculation）装置）は、排ガスが流通する流体通路２を有した絞り弁装置、又は排ガスが流通し且つ吸入空気も流通する流体通路２を有した絞り弁装置の例である。 As a modification of each of the above embodiments, the present invention may be applied to, for example, a throttle valve device having a fluid passage 2 through which exhaust gas of an internal combustion engine flows. Here, the exhaust gas recirculation device (EGR (Exhaust Gas Recirculation) device) is a throttle valve device having a fluid passage 2 through which exhaust gas flows, or a throttle valve having a fluid passage 2 through which exhaust gas flows and also intake air flows. It is an example of an apparatus.

１０ 絞り弁体、 ２ 流体通路、 ３０ 弁ボディ、 ３３０ 固定係合部、 ５２５ 回転体、 ５２６ ガイド体、 ５２８ 可動係合部、 ５３ コイルばね、 ５３１ 第１フック部、 ５３２ 第２フック部、 ５３３ コイル部、 ８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ 第１押当部、 ８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ， 第２押当部、８４，８４Ａ，８４Ｂ 押当部。 10 throttle valve body, 2 fluid passage, 30 valve body, 330 fixed engagement part, 525 rotating body, 526 guide body, 528 movable engagement part, 53 coil spring, 531 first hook part, 532 second hook part, 533 Coil part, 81, 81A, 81B, 81C, 81D, 81E 1st pressing part, 82, 82A, 82B, 82C, 82D, 82E, 2nd pressing part, 84, 84A, 84B pressing part.

Claims (15)

固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
前記流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、前記絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
前記コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により前記回転体がデフォルト位置（Ｌｄ）に定位するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち少なくとも１つずつに係合し、前記駆動力の発生により前記回転体が前記デフォルト位置から回転するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち一方と他方とに係合し、
前記第１フック部及び前記第２フック部の少なくとも一方に押し当たり、前記コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備え、
前記押当部のうち前記第１フック部または前記第２フック部に押し当たる押当面（８１２，８２２，８４２）は、前記コイル中心線方向における前記コイル部の端面（５３５ａ，５３６ａ）よりも前記中央の側に位置する絞り弁装置。 A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening degree of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion respectively include at least one of the fixed engagement portion and the movable engagement portion. When the rotary body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively include the fixed engagement portion and the movable engagement portion. Engage one of the other with the other,
A pressing part (81, 81A, 81B, 81C, 81D) that presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction. , 81E, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B) ,
The pressing surface (812, 822, 842) that presses against the first hook portion or the second hook portion of the pressing portion is more than the end surface (535a, 536a) of the coil portion in the coil center line direction. A throttle valve device located on the center side . 前記押当部のうち前記第１フック部または前記第２フック部に押し当たる押当面（８１２，８２２，８４２）は、前記コイル部の径方向中心から遠ざかるにつれ前記中央に近づく向きに傾斜したテーパ形状である請求項１に記載の絞り弁装置。 The pressing surface (812, 822, 842) of the pressing portion that presses against the first hook portion or the second hook portion is a taper inclined toward the center as the distance from the radial center of the coil portion increases. The throttle valve device according to claim 1, which has a shape. 固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
前記流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、前記絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
前記コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により前記回転体がデフォルト位置（Ｌｄ）に定位するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち少なくとも１つずつに係合し、前記駆動力の発生により前記回転体が前記デフォルト位置から回転するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち一方と他方とに係合し、
前記第１フック部及び前記第２フック部の少なくとも一方に押し当たり、前記コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備え、
前記押当部のうち前記第１フック部または前記第２フック部に押し当たる押当面（８１２，８２２，８４２）は、前記コイル部の径方向中心から遠ざかるにつれ前記中央に近づく向きに傾斜したテーパ形状である絞り弁装置。 A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening degree of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion respectively include at least one of the fixed engagement portion and the movable engagement portion. When the rotary body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively include the fixed engagement portion and the movable engagement portion. Engage one of the other with the other,
A pressing part (81, 81A, 81B, 81C, 81D) that presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction. , 81E, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B) ,
The pressing surface (812, 822, 842) of the pressing portion that presses against the first hook portion or the second hook portion is a taper inclined toward the center as the distance from the radial center of the coil portion increases. Shaped throttle device. 前記第１フック部または前記第２フック部の回転領域に配置され、前記コイル部の一部を前記中央に向けて前記コイル中心線方向に押し上げる押上部（８３）を備える請求項１〜３のいずれか１つに記載の絞り弁装置。 The first is located in the rotation region of the hook portion or the second hook part, towards a portion of the coil portion to the center of the claims 1-3 comprising a push-up portion (83) to push the coil center line direction The throttle valve device according to any one of claims. 固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
前記流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、前記絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
前記コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により前記回転体がデフォルト位置（Ｌｄ）に定位するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち少なくとも１つずつに係合し、前記駆動力の発生により前記回転体が前記デフォルト位置から回転するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち一方と他方とに係合し、
前記第１フック部及び前記第２フック部の少なくとも一方に押し当たり、前記コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備え、
前記第１フック部または前記第２フック部の回転領域に配置され、前記コイル部の一部を前記中央に向けて前記コイル中心線方向に押し上げる押上部（８３）を備える絞り弁装置。 A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening degree of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion respectively include at least one of the fixed engagement portion and the movable engagement portion. When the rotary body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively include the fixed engagement portion and the movable engagement portion. Engage one of the other with the other,
A pressing part (81, 81A, 81B, 81C, 81D) that presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction. , 81E, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B) ,
A throttle valve device , which is disposed in a rotation region of the first hook portion or the second hook portion, and includes a push-up portion (83) for pushing up a part of the coil portion toward the center in the coil center line direction . 前記可動係合部または前記固定係合部には、前記第１フック部または前記第２フック部が嵌まって係合する溝（５２８ａ，５２８ｂ）が形成され、
前記押当部のうち前記第１フック部または前記第２フック部に押し当たる押当面（８１２，８２２，８４２）が、前記溝の内壁面に形成されている請求項１〜５のいずれか１つに記載の絞り弁装置。 Grooves (528a, 528b) with which the first hook portion or the second hook portion is fitted and engaged are formed in the movable engaging portion or the fixed engaging portion,
The pushing pushing surface pushes against the first hook portion and the second hook portion of the part (812,822,842) is one of claims 1 to 5, which is formed on the inner wall surface of the groove 1 Throttle device according to item 1. 固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
前記流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、前記絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
前記コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により前記回転体がデフォルト位置（Ｌｄ）に定位するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち少なくとも１つずつに係合し、前記駆動力の発生により前記回転体が前記デフォルト位置から回転するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち一方と他方とに係合し、
前記第１フック部及び前記第２フック部の少なくとも一方に押し当たり、前記コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備え、
前記可動係合部または前記固定係合部には、前記第１フック部または前記第２フック部が嵌まって係合する溝（５２８ａ，５２８ｂ）が形成され、
前記押当部のうち前記第１フック部または前記第２フック部に押し当たる押当面（８１２，８２２，８４２）が、前記溝の内壁面に形成されている絞り弁装置。 A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening degree of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion respectively include at least one of the fixed engagement portion and the movable engagement portion. When the rotary body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively include the fixed engagement portion and the movable engagement portion. Engage one of the other with the other,
A pressing part (81, 81A, 81B, 81C, 81D) that presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction. , 81E, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B) ,
Grooves (528a, 528b) with which the first hook portion or the second hook portion is fitted and engaged are formed in the movable engaging portion or the fixed engaging portion,
A throttle valve device in which a pressing surface (812, 822, 842) of the pressing portion that contacts the first hook portion or the second hook portion is formed on the inner wall surface of the groove . 前記溝は、前記回転体の回転に伴い前記第１フック部または前記第２フック部が前記溝から遠ざかるにつれ開口面積が徐々に大きくなる断面形状である請求項６または７に記載の絞り弁装置。 The throttle valve device according to claim 6 or 7 , wherein the groove has a cross-sectional shape in which an opening area gradually increases as the first hook portion or the second hook portion moves away from the groove as the rotary body rotates. .. 前記押当部は、前記回転体に設けられた突起形状である請求項１〜５のいずれか１つに記載の絞り弁装置。 The pressing unit, throttle valve device according to any one of claims 1 to 5 is a protrusion shape provided in the rotating body. 固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
前記流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、前記絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
前記コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により前記回転体がデフォルト位置（Ｌｄ）に定位するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち少なくとも１つずつに係合し、前記駆動力の発生により前記回転体が前記デフォルト位置から回転するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち一方と他方とに係合し、
前記第１フック部及び前記第２フック部の少なくとも一方に押し当たり、前記コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備え、
前記押当部は、前記回転体に設けられた突起形状である絞り弁装置。 A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening degree of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion respectively include at least one of the fixed engagement portion and the movable engagement portion. When the rotary body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively include the fixed engagement portion and the movable engagement portion. Engage one of the other with the other,
A pressing part (81, 81A, 81B, 81C, 81D) that presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction. , 81E, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B) ,
A throttle valve device in which the pressing portion has a protrusion shape provided on the rotating body . 前記押当部は、前記第１フック部または前記第２フック部の回転領域の全体を含む範囲に設けられている請求項９または１０に記載の絞り弁装置。 The throttle valve device according to claim 9 or 10 , wherein the pressing portion is provided in a range including the entire rotation region of the first hook portion or the second hook portion. 前記押当部の少なくとも一部は、前記コイル中心線方向のうち前記コイル部の１巻目部分（５３５，５３６）が位置する領域（Ｗ１，Ｗ２）に配置されている請求項１〜１１のいずれか１つに記載の絞り弁装置。 At least a portion of the pressing portion, of the coil center line direction of the coil portion of 1 tum (535 and 536) is located regions (W1, W2) according are placed in section 1-11 The throttle valve device according to any one of claims. 前記押当部は、前記第１フック部に前記押当力を付与する第１押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ）及び前記第２フック部に前記押当力を付与する第２押当部（８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ）を有する請求項１〜１２のいずれか１つに記載の絞り弁装置。 The pushing portion applies the pushing force to the first hook portion and the second hook portion. The first pushing portion (81, 81A, 81B, 81C, 81D, 81E) applies the pushing force to the first hook portion. The throttle valve device according to any one of claims 1 to 12 , further comprising a second pressing portion (82, 82A, 82B, 82C, 82D, 82E). 前記第１押当部及び前記第２押当部は、前記可動係合部または前記固定係合部に設けられ、
前記回転体が前記デフォルト位置から一方側へ回転しているとき、前記第１フック部に前記第１押当部が押し当たるとともに前記第２フック部が前記第２押当部から離れ、
前記回転体が前記デフォルト位置から他方側へ回転しているとき、前記第２フック部に前記第２押当部が押し当たるとともに前記第１フック部が前記第１押当部から離れる請求項１３に記載の絞り弁装置。 The first pressing portion and the second pressing portion are provided on the movable engaging portion or the fixed engaging portion,
When the rotating body is rotating from the default position to the one side, the first pressing portion is pressed against the first hook portion and the second hook portion is separated from the second pressing portion,
When said rotary member is rotating to the other side from the default position, claim wherein the first hook portion with press against the second pressing portion to the second hook part is moved away from the first pressing portion 13 A throttle valve device described in. 固定係合部（３３０）を有し、流体通路（２）を形成する弁ボディ（３０）と、
前記流体通路の開度を増減する絞り弁体（１０）と、
可動係合部（５２８）を有し、前記絞り弁体と一体回転する回転体（５２５）と、
第１フック部（５３１）及び第２フック部（５３２）の間にコイル部（５３３）を有する捩じりコイルばね（５３）と、
前記コイル部を径方向内側からガイドするガイド体（５２６）とを、備え、
駆動力の消失により前記回転体がデフォルト位置（Ｌｄ）に定位するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち少なくとも１つずつに係合し、前記駆動力の発生により前記回転体が前記デフォルト位置から回転するとき、前記第１フック部と前記第２フック部とはそれぞれ、前記固定係合部及び前記可動係合部のうち一方と他方とに係合し、
前記第１フック部及び前記第２フック部の少なくとも一方に押し当たり、前記コイル部のコイル中心線方向の中央に向けて押当力を付与する押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ，８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ，８４，８４Ａ，８４Ｂ）を備え、
前記押当部は、前記第１フック部に前記押当力を付与する第１押当部（８１，８１Ａ，８１Ｂ，８１Ｃ，８１Ｄ，８１Ｅ）及び前記第２フック部に前記押当力を付与する第２押当部（８２，８２Ａ，８２Ｂ，８２Ｃ，８２Ｄ，８２Ｅ）を有し、
前記第１押当部及び前記第２押当部は、前記可動係合部または前記固定係合部に設けられ、
前記回転体が前記デフォルト位置から一方側へ回転しているとき、前記第１フック部に前記第１押当部が押し当たるとともに前記第２フック部が前記第２押当部から離れ、
前記回転体が前記デフォルト位置から他方側へ回転しているとき、前記第２フック部に前記第２押当部が押し当たるとともに前記第１フック部が前記第１押当部から離れる絞り弁装置。 A valve body (30) having a fixed engagement portion (330) and forming a fluid passage (2);
A throttle valve body (10) for increasing or decreasing the opening degree of the fluid passage,
A rotating body (525) having a movable engaging portion (528) and rotating integrally with the throttle valve body;
A torsion coil spring (53) having a coil portion (533) between the first hook portion (531) and the second hook portion (532),
A guide body (526) for guiding the coil portion from the inside in the radial direction,
When the rotating body is localized at the default position (Ld) due to the disappearance of the driving force, the first hook portion and the second hook portion respectively include at least one of the fixed engagement portion and the movable engagement portion. When the rotary body rotates from the default position due to the generation of the driving force, the first hook portion and the second hook portion respectively include the fixed engagement portion and the movable engagement portion. Engage one of the other with the other,
A pressing part (81, 81A, 81B, 81C, 81D) that presses at least one of the first hook part and the second hook part and applies a pressing force toward the center of the coil part in the coil center line direction. , 81E, 82, 82A, 82B, 82C, 82D, 82E, 84, 84A, 84B) ,
The pushing portion applies the pushing force to the first hook portion and the second hook portion. The first pushing portion (81, 81A, 81B, 81C, 81D, 81E) applies the pushing force to the first hook portion. Has a second pressing portion (82, 82A, 82B, 82C, 82D, 82E)
The first pressing portion and the second pressing portion are provided on the movable engaging portion or the fixed engaging portion,
When the rotating body is rotating from the default position to the one side, the first pressing portion is pressed against the first hook portion and the second hook portion is separated from the second pressing portion,
When the rotating body is rotating from the default position to the other side, the second pressing portion is pressed against the second hook portion and the first hook portion is separated from the first pressing portion. ..
JP2017133974A 2017-07-07 2017-07-07 Throttle valve device Active JP6720930B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2017133974A JP6720930B2 (en) 2017-07-07 2017-07-07 Throttle valve device
DE112018003440.2T DE112018003440T5 (en) 2017-07-07 2018-06-26 Throttle valve device
PCT/JP2018/024094 WO2019009133A1 (en) 2017-07-07 2018-06-26 Throttle valve device
CN201880044777.4A CN110869594B (en) 2017-07-07 2018-06-26 Throttle valve device
US16/733,402 US11248714B2 (en) 2017-07-07 2020-01-03 Throttle valve device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017133974A JP6720930B2 (en) 2017-07-07 2017-07-07 Throttle valve device

Publications (3)

Publication Number Publication Date
JP2019015248A JP2019015248A (en) 2019-01-31
JP2019015248A5 JP2019015248A5 (en) 2019-08-22
JP6720930B2 true JP6720930B2 (en) 2020-07-08

Family

ID=64950040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017133974A Active JP6720930B2 (en) 2017-07-07 2017-07-07 Throttle valve device

Country Status (5)

Country Link
US (1) US11248714B2 (en)
JP (1) JP6720930B2 (en)
CN (1) CN110869594B (en)
DE (1) DE112018003440T5 (en)
WO (1) WO2019009133A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7004638B2 (en) * 2018-12-18 2022-01-21 株式会社デンソー Throttle device and manufacturing method of throttle device
CA3125906C (en) * 2019-01-15 2024-01-02 Shanghai Auzone Auto Parts Manufacturing Co., Ltd Reset mechanism for electronic throttle body
WO2021176489A1 (en) * 2020-03-02 2021-09-10 愛三工業株式会社 Throttle device
CN112594469B (en) * 2020-11-24 2022-06-28 中国人民解放军96901部队24分队 Variable throttling rotary joint based on hydraulic cylinder pin shaft

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4880207A (en) * 1987-03-02 1989-11-14 Mitsubishi Denki Kabushiki Kaisha Intake throttle valve return device of engine
JP3038282B2 (en) * 1993-04-12 2000-05-08 株式会社日立製作所 Throttle valve opening / closing device
JP3945680B2 (en) * 1999-05-10 2007-07-18 株式会社日立製作所 Throttle device for internal combustion engine
JP3992928B2 (en) * 1999-05-10 2007-10-17 株式会社日立製作所 Throttle device for internal combustion engine
JP2004150324A (en) * 2002-10-30 2004-05-27 Denso Corp Electronically controlled type throttle control device
DE602004006038T2 (en) * 2003-03-07 2008-01-10 Denso Corp., Kariya Electronic throttle control device
JP2005030296A (en) * 2003-07-11 2005-02-03 Aisan Ind Co Ltd Throttle control device
JP4457038B2 (en) * 2005-04-14 2010-04-28 日立オートモティブシステムズ株式会社 Motor driven throttle control device for internal combustion engine
JP4651588B2 (en) * 2006-07-14 2011-03-16 株式会社デンソー Valve open / close control device
JP2012041887A (en) * 2010-08-20 2012-03-01 Denso Corp Electronic throttle
JP6203044B2 (en) * 2013-12-26 2017-09-27 株式会社マーレ フィルターシステムズ Intake control valve assembly structure and assembly method
JP2016020653A (en) * 2014-07-14 2016-02-04 愛三工業株式会社 Throttle valve control device
JP6392146B2 (en) 2015-03-10 2018-09-19 愛三工業株式会社 Throttle device
JP2017067067A (en) * 2015-09-30 2017-04-06 株式会社デンソー Torsion spring
JP2019015249A (en) 2017-07-07 2019-01-31 株式会社デンソー Throttle valve device

Also Published As

Publication number Publication date
US20200141511A1 (en) 2020-05-07
CN110869594A (en) 2020-03-06
WO2019009133A1 (en) 2019-01-10
DE112018003440T5 (en) 2020-04-09
CN110869594B (en) 2022-06-17
JP2019015248A (en) 2019-01-31
US11248714B2 (en) 2022-02-15

Similar Documents

Publication Publication Date Title
JP6720930B2 (en) Throttle valve device
JP6332463B2 (en) Electric power steering device
US9878732B2 (en) Rotational operation device
WO2014077310A1 (en) Centrifugal compressor
KR101743461B1 (en) Flat strain wave gearings
JP7168465B2 (en) Electric gas flow control valve
US20170363176A1 (en) Speed reducer
JP2011252482A (en) Throttle apparatus
WO2017098663A1 (en) Flat strain wave gearing device
WO2014148414A1 (en) Power transmission device
JP2015052387A (en) Ball screw device
US9441548B2 (en) Acceleration device
JP2009024722A (en) Flywheel device
JP5071243B2 (en) clutch
JP2005257080A (en) Rotational vibration damper
WO2019009134A1 (en) Throttle valve device
JP2019019975A (en) Double-eccentric valve
JP6963519B2 (en) Throttle device
JP4219841B2 (en) Throttle control device
EP3226099A1 (en) Rotational operation device
JP7194607B2 (en) rotary drive mechanism
US11401872B2 (en) Throttle device and method for manufacturing throttle device
WO2024029440A1 (en) Worm-gear speed reducer
JP2005299413A5 (en)
WO2024029451A1 (en) Worm gear reducer

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190709

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190709

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200519

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200601

R151 Written notification of patent or utility model registration

Ref document number: 6720930

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250